Cambridge ( KAYM-brij) is a city in Middlesex County, Massachusetts, and part of the Boston metropolitan area as a major suburb of Boston. As of the 2020 United States Census, the city's population was 118,403, making it the fourth most populous city in the state, behind Boston, Worcester, and Springfield. It is one of two de jure county seats of Middlesex County, although the county's government was abolished in 1997. Situated directly north of Boston, across the Charles River, it was named in honor of the University of Cambridge in England, once also an important center of the Puritan theology embraced by the town's founders.: 18
Harvard University, the Massachusetts Institute of Technology (MIT), Lesley University, and Hult International Business School are in Cambridge, as was Radcliffe College before it merged with Harvard. Kendall Square in Cambridge has been called "the most innovative square mile on the planet" owing to the high concentration of successful startups that have emerged in the vicinity of the square since 2010.
In December 1630, the site of what would become Cambridge was chosen because it was safely upriver from Boston Harbor, making it easily defensible from attacks by enemy ships. Thomas Dudley, his daughter Anne Bradstreet, and her husband, Simon Bradstreet, were the town's founders. The first houses were built in the spring of 1631. The settlement was initially referred to as "the newe towne". Official Massachusetts records show the name rendered as Newe Towne by 1632, and as Newtowne by 1638.
Located at the first convenient Charles River crossing west of Boston, Newtowne was one of several towns (including Boston, Dorchester, Watertown, and Weymouth) founded by the 700 original Puritan colonists of the Massachusetts Bay Colony under Governor John Winthrop. Its first preacher was Thomas Hooker, who led many of its original inhabitants west in 1636 to found Hartford and the Connecticut Colony; before leaving, they sold their plots to more recent immigrants from England. The original village site is now within Harvard Square. The marketplace where farmers sold crops from surrounding towns at the edge of a salt marsh (since filled) remains within a small park at the corner of John F. Kennedy and Winthrop Streets.
In 1636, the Newe College (later renamed Harvard College after benefactor John Harvard) was founded by the Massachusetts Bay Colony to train ministers. According to Cotton Mather, Newtowne was chosen for the site of the college by the Great and General Court (the Massachusetts legislature) primarily for its proximity to the popular and highly respected Puritan preacher Thomas Shepard. In May 1638, the settlement's name was changed to Cambridge in honor of the university in Cambridge, England.
The town comprised a much larger area than the present city, with various outlying parts becoming independent towns over the years: Cambridge Village (later Newtown and now Newton) in 1688, Cambridge Farms (now Lexington) in 1712 or 1713, and Little or South Cambridge (now Brighton)[a] and Menotomy or West Cambridge (now Arlington) in 1807.[b] In the late 19th century, various schemes for annexing Cambridge to Boston were pursued and rejected.
Newtowne's ministers, Hooker and Shepard, the college's first president, the college's major benefactor, and the first schoolmaster Nathaniel Eaton were all Cambridge alumni, as was the colony's governor John Winthrop. In 1629, Winthrop had led the signing of the founding document of the city of Boston, which was known as the Cambridge Agreement, after the university. In 1650, Governor Thomas Dudley signed the charter creating the corporation that still governs Harvard College.
Cambridge grew slowly as an agricultural village eight miles (13 km) by road from Boston, the colony's capital. By the American Revolution, most residents lived near the Common and Harvard College, with most of the town comprising farms and estates. Most inhabitants were descendants of the original Puritan colonists, but there was also a small elite of Anglican "worthies" who were not involved in village life, made their livings from estates, investments, and trade, and lived in mansions along "the Road to Watertown" (today's Brattle Street, still known as Tory Row).
Coming north from Virginia, George Washington took command of the volunteer American soldiers camped on Cambridge Common on July 3, 1775, now reckoned the birthplace of the U.S. Army.[c] Most of the Tory estates were confiscated after the Revolution. On January 24, 1776, Henry Knox arrived with artillery captured from Fort Ticonderoga, which enabled Washington to drive the British army out of Boston.
Between 1790 and 1840, Cambridge grew rapidly, with the construction of the West Boston Bridge in 1792 connecting Cambridge directly to Boston, so that it was no longer necessary to travel eight miles (13 km) through the Boston Neck, Roxbury, and Brookline to cross the Charles River. A second bridge, the Canal Bridge, opened in 1809 alongside the new Middlesex Canal. The new bridges and roads made what were formerly estates and marshland into prime industrial and residential districts.
In the mid-19th century, Cambridge was the center of a literary revolution. It was home to some of the famous Fireside Poets—so called because their poems would often be read aloud by families in front of their evening fires. The Fireside Poets—Henry Wadsworth Longfellow, James Russell Lowell, and Oliver Wendell Holmes—were highly popular and influential in their day.
Soon after, turnpikes were built: the Cambridge and Concord Turnpike (today's Broadway and Concord Ave.), the Middlesex Turnpike (Hampshire St. and Massachusetts Ave. northwest of Porter Square), and what are today's Cambridge, Main, and Harvard Streets connected various areas of Cambridge to the bridges. In addition, the town was connected to the Boston & Maine Railroad, leading to the development of Porter Square as well as the creation of neighboring Somerville from the formerly rural parts of Charlestown.
Cambridge was incorporated as a city in 1846. The city's commercial center began to shift from Harvard Square to Central Square, which became the city's downtown around that time.
Between 1850 and 1900, Cambridge took on much of its present character—streetcar suburban development along the turnpikes, with working-class and industrial neighborhoods focused on East Cambridge, comfortable middle-class housing on the old Cambridgeport and Mid-Cambridge estates, and upper-class enclaves near Harvard University and on the minor hills. The coming of the railroad to North Cambridge and Northwest Cambridge led to three major changes: the development of massive brickyards and brickworks between Massachusetts Ave., Concord Ave. and Alewife Brook; the ice-cutting industry launched by Frederic Tudor on Fresh Pond; and the carving up of the last estates into residential subdivisions to house the thousands of immigrants who arrived to work in the new industries.
For many decades, the city's largest employer was the New England Glass Company, founded in 1818. By the middle of the 19th century, it was the world's largest and most modern glassworks. In 1888, Edward Drummond Libbey moved all production to Toledo, Ohio, where it continues today under the name Owens-Illinois. The company's flint glassware with heavy lead content is prized by antique glass collectors. There is none on public display in Cambridge, but the Toledo Museum of Art has a large collection. The Museum of Fine Arts, Boston, and the Sandwich Glass Museum on Cape Cod also have a few pieces.
By 1920, Cambridge was one of New England's main industrial cities, with nearly 120,000 residents. Among the largest businesses in Cambridge during the period of industrialization was Carter's Ink Company, whose neon sign long adorned the Charles River and which was for many years the world's largest ink manufacturer. Next door was the Athenaeum Press. Confectionery and snack manufacturers in the Cambridgeport-Area 4-Kendall corridor included the Kennedy Biscuit Factory (later part of Nabisco and originator of the Fig Newton), Necco, Squirrel Brands, George Close Company (1861–1930s), Page & Shaw, Daggett Chocolate (1892–1960s, recipes bought by Necco), Fox Cross Company (1920–1980, originator of the Charleston Chew, and now part of Tootsie Roll Industries), Kendall Confectionery Company, and James O. Welch (1927–1963, originator of Junior Mints, Sugar Daddies, Sugar Mamas, and Sugar Babies, now part of Tootsie Roll Industries).
Only the Cambridge Brands subsidiary of Tootsie Roll Industries remains in town, still manufacturing Junior Mints in the old Welch factory on Main Street. The Blake and Knowles Steam Pump Company (1886), the Kendall Boiler and Tank Company (1880, now in Chelmsford, Massachusetts), and the New England Glass Company (1818–1878) were among the industrial manufacturers in what are now Kendall Square and East Cambridge.
In 1935, the Cambridge Housing Authority and the Public Works Administration demolished an integrated low-income tenement neighborhood with African Americans and European immigrants, built in its place the whites-only "Newtowne Court" public housing development and the adjoining segregated "Washington Elms" project for Black people in 1940, and the city required segregation in its other public housing projects as well.
As industry in New England began to decline during the Great Depression and after World War II, Cambridge lost much of its industrial base. It also began to become an intellectual, rather than an industrial, center. Harvard University had always been important as both a landowner and an institution, but it began to play a more dominant role in the city's life and culture. When Radcliffe College was established in 1879 the town became a mecca for some of the nation's most academically talented female students. The Massachusetts Institute of Technology's move from Boston in 1916 reinforced Cambridge's status as an intellectual center of the United States.
After the 1950s, the city's population began to decline slowly as families tended to be replaced by single people and young couples. In Cambridge Highlands, the technology company Bolt, Beranek, & Newman produced the first network router in 1969 and hosted the invention of computer-to-computer email in 1971. The 1980s brought a wave of high-technology startups. Those selling advanced minicomputers were overtaken by the microcomputer. Cambridge-based VisiCorp made the first spreadsheet software for personal computers, Visicalc, and helped propel the Apple II to major consumer success. It was overtaken and purchased by Cambridge-based Lotus Development, maker of Lotus 1-2-3. (This was in turn replaced in the market by Microsoft Excel).
The city continues to be home to many startups. Kendall Square was a major software hub through the dot-com boom and today hosts offices of such technology companies as Google, Microsoft, and Amazon. The Square also now houses the headquarters of Akamai.
In 1976, Harvard's plans to start experiments with recombinant DNA led to a three-month moratorium and a citizen review panel. In the end, Cambridge decided to allow such experiments but passed safety regulations in 1977. This led to regulatory certainty and acceptance when Biogen opened a lab in 1982, in contrast to the hostility that caused the Genetic Institute (a Harvard spinoff) to abandon Somerville and Boston for Cambridge. The biotech and pharmaceutical industries have since thrived in Cambridge, which now includes headquarters for Biogen and Genzyme; laboratories for Novartis, Teva, Takeda, Alnylam, Ironwood, Catabasis, Moderna Therapeutics, Editas Medicine; support companies such as Cytel; and many smaller companies.
By the end of the 20th century, Cambridge had one of the most costly housing markets in the Northeastern United States. While considerable class, race, and age diversity persisted, it became harder for those who grew up in the city to afford to stay. The end of rent control in 1994 prompted many Cambridge renters to move to more affordable housing in Somerville and other cities or towns.
Until recently, Cambridge's mix of amenities and proximity to Boston kept housing prices relatively stable despite the bursting of the United States housing bubble. Cambridge has been a sanctuary city since 1985 and reaffirmed its status as such in 2006.
According to the United States Census Bureau, Cambridge has a total area of 7.1 square miles (18 km2), of which 6.4 square miles (17 km2) is land and 0.7 square miles (1.8 km2) (9.82%) is water.
The border between Cambridge and the neighboring city of Somerville passes through densely populated neighborhoods which are connected by the MBTA Red Line. Some of the main squares, Inman, Porter, and to a lesser extent, Harvard and Lechmere, are very close to the city line, as are Somerville's Union and Davis Squares.
Through the City of Cambridge's exclusive municipal water system, the city further controls two exclave areas, one being Payson Park Reservoir and Gatehouse, a 2009 listed American Water Landmark located roughly one mile west of Fresh Pond and surrounded by the town of Belmont. The second area is the larger Hobbs Brook and Stony Brook watersheds, which share borders with neighboring towns and cities including Lexington, Lincoln, Waltham and Weston.
Cambridge's residential neighborhoods border but are not defined by the squares.
In the Koppen-Geiger classification Cambridge has a warm continental summer climate (Dfa) that can appear in the southern end of New England's interior. Abundant rain falls on the city; it has no dry season. The average January temperature is 26.6 °F (- 3 °C), making Cambridge part of Group D, independent of the isotherm. There are four well-defined seasons.
As of the census of 2010, there were 105,162 people, 44,032 households, and 17,420 families residing in the city. The population density was 16,354.9 people per square mile (6,314.6/km2). There were 47,291 housing units at an average density of 7,354.7 per square mile (2,840.3/km2). The racial makeup of the city was 66.60% White, 11.70% Black or African American, 0.20% Native American, 15.10% Asian (3.7% Chinese, 1.4% Asian Indian, 1.2% Korean, 1.0% Japanese), 0.01% Pacific Islander, 2.10% from other races, and 4.30% from two or more races. 7.60% of the population were Hispanic or Latino of any race (1.6% Puerto Rican, 1.4% Mexican, 0.6% Dominican, 0.5% Colombian & Salvadoran, 0.4% Spaniard). Non-Hispanic Whites were 62.1% of the population in 2010, down from 89.7% in 1970. An individual resident of Cambridge is known as a Cantabrigian.
In 2010, there were 44,032 households, out of which 16.9% had children under the age of 18 living with them, 28.9% were married couples living together, 8.4% had a female householder with no husband present, and 60.4% were non-families. 40.7% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.00 and the average family size was 2.76.
In the city, the population was spread out, with 13.3% of the population under the age of 18, 21.2% from 18 to 24, 38.6% from 25 to 44, 17.8% from 45 to 64, and 9.2% who were 65 years of age or older. The median age was 30.5 years. For every 100 females, there were 96.1 males. For every 100 females age 18 and over, there were 94.7 males.
The median income for a household in the city was $47,979, and the median income for a family was $59,423 (these figures had risen to $58,457 and $79,533 respectively as of a 2007 estimate). Males had a median income of $43,825 versus $38,489 for females. The per capita income for the city was $31,156. About 8.7% of families and 12.9% of the population were below the poverty line, including 15.1% of those under age 18 and 12.9% of those age 65 or over.
Cambridge has been ranked as one of the most liberal cities in America. Locals living in and near the city jokingly refer to it as "The People's Republic of Cambridge." For 2016, the residential property tax rate in Cambridge was $6.99 per $1,000. Cambridge enjoys the highest possible bond credit rating, AAA, with all three Wall Street rating agencies.
In 2000, 11.0% of city residents were of Irish ancestry; 7.2% were of English, 6.9% Italian, 5.5% West Indian and 5.3% German ancestry. 69.4% spoke only English at home, while 6.9% spoke Spanish, 3.2% Chinese or Mandarin, 3.0% Portuguese, 2.9% French Creole, 2.3% French, 1.5% Korean, and 1.0% Italian.
Data is from the 2009–2013 American Community Survey 5-Year Estimates.
Manufacturing was an important part of Cambridge's economy in the late 19th and early 20th century, but educational institutions are its biggest employers today. Harvard and MIT together employ about 20,000. As a cradle of technological innovation, Cambridge was home to technology firms Analog Devices, Akamai, Bolt, Beranek, and Newman (BBN Technologies) (now part of Raytheon), General Radio (later GenRad), Lotus Development Corporation (now part of IBM), Polaroid, Symbolics, and Thinking Machines.
In 1996, Polaroid, Arthur D. Little, and Lotus were Cambridge's top employers, with over 1,000 employees, but they faded out a few years later. Health care and biotechnology firms such as Genzyme, Biogen Idec, bluebird bio, Millennium Pharmaceuticals, Sanofi, Pfizer and Novartis have significant presences in the city. Though headquartered in Switzerland, Novartis continues to expand its operations in Cambridge.
Other major biotech and pharmaceutical firms expanding their presence in Cambridge include GlaxoSmithKline, AstraZeneca, Shire, and Pfizer. Most of Cambridge's biotech firms are in Kendall Square and East Cambridge, which decades ago were the city's center of manufacturing. Some others are in University Park at MIT, a new development in another former manufacturing area.
None of the high-technology firms that once dominated the economy was among the 25 largest employers in 2005, but by 2008 Akamai and ITA Software were. Google, IBM Research, Microsoft Research, and Philips Research maintain offices in Cambridge. In late January 2012—less than a year after acquiring Billerica-based analytic database management company, Vertica—Hewlett-Packard announced it would also be opening its first offices in Cambridge. Also around that time, e-commerce giants Staples and Amazon.com said they would be opening research and innovation centers in Kendall Square. And LabCentral provides a shared laboratory facility for approximately 25 emerging biotech companies.[unreliable source?]
The proximity of Cambridge's universities has also made the city a center for nonprofit groups and think tanks, including the National Bureau of Economic Research, the Smithsonian Astrophysical Observatory, the Lincoln Institute of Land Policy, Cultural Survival, and One Laptop per Child.
Cambridge has a large and varied collection of permanent public art, on both city property (managed by the Cambridge Arts Council) and the Harvard and MIT campuses. Temporary public artworks are displayed as part of the annual Cambridge River Festival on the banks of the Charles River, during winter celebrations in Harvard and Central Squares, and at university campus sites. Experimental forms of public artistic and cultural expression include the Central Square World's Fair, the annual Somerville-based Honk! Festival, and If This House Could Talk, a neighborhood art and history event.
Street musicians and other performers entertain tourists and locals in Harvard Square during the warmer months. The performances are coordinated through a public process that has been developed collaboratively by the performers, city administrators, private organizations and business groups. The Cambridge public library contains four Works Progress Administration murals completed in 1935 by Elizabeth Tracy Montminy: Religion, Fine Arts, History of Books and Paper, and The Development of the Printing Press.
Despite intensive urbanization during the late 19th century and the 20th century, Cambridge has several historic buildings, including some from the 17th century. The city also has abundant contemporary architecture, largely built by Harvard and MIT.
The city has an active music scene, from classical performances to the latest popular bands. Beyond its colleges and universities, Cambridge has many music venues, including The Middle East, Club Passim, The Plough and Stars, The Lizard Lounge and the Nameless Coffeehouse.
Consisting largely of densely built residential space, Cambridge lacks significant tracts of public parkland. Easily accessible open space on the university campuses, including Harvard Yard, the Radcliffe Yard, and MIT's Great Lawn, as well as the considerable open space of Mount Auburn Cemetery and Fresh Pond Reservation, partly compensates for this. At Cambridge's western edge, the cemetery is known as a garden cemetery because of its landscaping (the oldest planned landscape in the country) and arboretum. Although known as a Cambridge landmark, much of the cemetery lies within Watertown. It is also an Important Bird Area (IBA) in the Greater Boston area. Fresh Pond Reservation is the largest open green space in Cambridge with 162 acres (656,000 m2) of land around a 155-acre (627,000 m2) kettle hole lake. This land includes a 2.25-mile walking trail around the reservoir and a public 9-hole golf course.
Public parkland includes the esplanade along the Charles River, which mirrors its Boston counterpart; Cambridge Common, a busy and historic public park adjacent to Harvard's campus; Danehy Park, formerly a landfill; and the Alewife Brook Reservation.
Cambridge is split between Massachusetts's 5th and 7th U.S. congressional districts. The 5th district seat is held by Democrat Katherine Clark, who replaced now-Senator Ed Markey in a 2013 special election; the 7th is represented by Democrat Ayanna Pressley, elected in 2018. The state's senior United States Senator is Democrat Elizabeth Warren, elected in 2012, who lives in Cambridge. The governor of Massachusetts is Republican Charlie Baker, elected in 2014.
Cambridge is represented in six districts in the Massachusetts House of Representatives: the 24th Middlesex (which includes parts of Belmont and Arlington), the 25th and 26th Middlesex (the latter of which includes a portion of Somerville), the 29th Middlesex (which includes a small part of Watertown), and the Eighth and Ninth Suffolk (both including parts of the City of Boston). The city is represented in the Massachusetts Senate as a part of the 2nd Middlesex, Middlesex and Suffolk, and 1st Suffolk and Middlesex districts.
From 1860 to 1880, Republicans Abraham Lincoln, Ulysses S. Grant, Rutherford B. Hayes, and James Garfield each won Cambridge, Grant doing so by margins of over 20 points in both of his campaigns. Following that, from 1884–1892, Grover Cleveland won Cambridge in all three of his presidential campaigns, by less than ten points each time.
Then from 1896 to 1924, Cambridge became something of a "swing" city with a slight Republican lean. GOP nominees carried the city in five of the eight presidential elections during that time frame, with five of the elections resulting in either a plurality or a margin of victory of fewer than ten points.
The city of Cambridge is extremely Democratic in modern times, however. In the last 23 presidential elections dating back to the nomination of Al Smith in 1928, the Democratic nominee has carried Cambridge in every election. Every Democratic nominee since Massachusetts native John F. Kennedy in 1960 has received at least 70% of the vote, except for Jimmy Carter in 1976 and 1980. Since 1928, the only Republican nominee to come within ten points of carrying Cambridge is Dwight Eisenhower in his 1956 re-election bid.
Cambridge has a city government led by a mayor and a nine-member city council. There is also a six-member school committee that functions alongside the superintendent of public schools. The councilors and school committee members are elected every two years using proportional representation.
The mayor is elected by the city councilors from among themselves and serves as the chair of city council meetings. The mayor also sits on the school committee. The mayor is not the city's chief executive. Rather, the city manager, who is appointed by the city council, serves in that capacity.
Under the city's Plan E form of government, the city council does not have the power to appoint or remove city officials who are under the direction of the city manager. The city council and its members are also forbidden from giving orders to any subordinate of the city manager.
Louis DePasquale is the City Manager, having succeeded Lisa C. Peterson, the Acting City Manager and Cambridge's first woman City Manager, on November 14, 2016. Peterson became Acting City Manager on September 30, 2016, after Richard C. Rossi announced that he would opt out of his contract renewal. Rossi succeeded Robert W. Healy, who retired in June 2013 after 32 years in the position. In recent history, the media has highlighted the salary of the city manager as one of the highest for a Massachusetts civic employee.
On March 8, 2021, Cambridge City Council voted to recognize polyamorous domestic partnerships, becoming the second city in the United States following neighboring Somerville, which had done so in 2020.
Cambridge was a county seat of Middlesex County, along with Lowell, until the abolition of county government. Though the county government was abolished in 1997, the county still exists as a geographical and political region. The employees of Middlesex County courts, jails, registries, and other county agencies now work directly for the state. The county's registrars of Deeds and Probate remain in Cambridge, but the Superior Court and District Attorney have had their operations transferred to Woburn. Third District Court has shifted operations to Medford, and the county Sheriff's office awaits near-term relocation.
Cambridge is perhaps best known as an academic and intellectual center. Its colleges and universities include:
At least 258 of the world's total 962 Nobel Prize winners have at some point in their careers been affiliated with universities in Cambridge.
Five upper schools offer grades 6–8 in some of the same buildings as the elementary schools:
Other public charter schools include Benjamin Banneker Charter School, which serves grades K–6; Community Charter School of Cambridge in Kendall Square, which serves grades 7–12; and Prospect Hill Academy, a charter school whose upper school is in Central Square though it is not a part of the Cambridge Public School District.
Cambridge is served by the Cambridge Chronicle, the oldest surviving weekly paper in the United States. Another popular online newspaper is Cambridge Day.
Cambridge is home to the following commercially licensed and student-run radio stations:
Cambridge Community Television (CCTV) has served the city since its inception in 1988. CCTV operates Cambridge's public access television facility and three television channels, 8, 9, and 96, on the Cambridge cable system (Comcast). The city has invited tenders from other cable providers, but Comcast remains its only fixed television and broadband utility, though services from American satellite TV providers are available. In October 2014, Cambridge City Manager Richard Rossi appointed a citizen Broadband Task Force to "examine options to increase competition, reduce pricing, and improve speed, reliability and customer service for both residents and businesses."
Cambridge obtains water from Hobbs Brook (in Lincoln and Waltham) and Stony Brook (Waltham and Weston), as well as an emergency connection to the Massachusetts Water Resources Authority. The city owns over 1,200 acres (486 ha) of land in other towns that includes these reservoirs and portions of their watershed. Water from these reservoirs flows by gravity through an aqueduct to Fresh Pond in Cambridge. It is then treated in an adjacent plant and pumped uphill to an elevation of 176 feet (54 m) above sea level at the Payson Park Reservoir (Belmont). The water is then redistributed downhill via gravity to individual users in the city. A new water treatment plant opened in 2001.
In October 2016, the City of Cambridge announced that, owing to drought conditions, they would begin buying water from the MWRA. On January 3, 2017, Cambridge announced that "As a result of continued rainfall each month since October 2016, we have been able to significantly reduce the need to use MWRA water. We have not purchased any MWRA water since December 12, 2016 and if 'average' rainfall continues this could continue for several months."
Several major roads lead to Cambridge, including Route 2, Route 16, and the McGrath Highway (Route 28). The Massachusetts Turnpike does not pass through Cambridge but provides access by an exit in nearby Allston. Both U.S. Route 1 and Interstate 93 also provide additional access on the eastern end of Cambridge at Leverett Circle in Boston. Route 2A runs the length of the city, chiefly along Massachusetts Avenue. The Charles River forms the southern border of Cambridge and is crossed by 11 bridges connecting Cambridge to Boston, including the Longfellow Bridge and the Harvard Bridge, eight of which are open to motorized road traffic.
Cambridge has an irregular street network because many of the roads date from the colonial era. Contrary to popular belief, the road system did not evolve from longstanding cow-paths. Roads connected various village settlements with each other and nearby towns and were shaped by geographic features, most notably streams, hills, and swampy areas. Today, the major "squares" are typically connected by long, mostly straight roads, such as Massachusetts Avenue between Harvard Square and Central Square, or Hampshire Street between Kendall Square and Inman Square.
Cambridge is served by the MBTA, including the Porter Square Station on the regional Commuter Rail; the Lechmere Station on the Green Line; and the Red Line at Alewife, Porter Square, Harvard Square, Central Square, and Kendall Square/MIT Stations. Alewife Station, the terminus of the Red Line, has a large multi-story parking garage (at a rate of $7 per day as of 2015).
The Harvard bus tunnel, under Harvard Square, connects to the Red Line underground. This tunnel was originally opened for streetcars in 1912 and served trackless trolleys (trolleybuses) and buses as the routes were converted; four lines of the MBTA trolleybus system continue to use it. The tunnel was partially reconfigured when the Red Line was extended to Alewife in the early 1980s.
Besides the state-owned transit agency, the city is also served by the Charles River Transportation Management Agency (CRTMA) shuttles which are supported by some of the largest companies operating in the city, in addition to the municipal government itself.
Cambridge has several bike paths, including one along the Charles River, and the Linear Park connecting the Minuteman Bikeway at Alewife with the Somerville Community Path. A connection to Watertown is under construction. Bike parking is common and there are bike lanes on many streets, although concerns have been expressed regarding the suitability of many of the lanes. On several central MIT streets, bike lanes transfer onto the sidewalk. Cambridge bans cycling on certain sections of sidewalk where pedestrian traffic is heavy.
While Bicycling Magazine in 2006 rated Boston as one of the worst cities in the nation for bicycling, it has given Cambridge honorable mention as one of the best and was called by the magazine "Boston's Great Hope". Boston has since then followed the example of Cambridge and made considerable efforts to improve bicycling safety and convenience.
Walking is a popular activity in Cambridge. In 2000, among US cities with more than 100,000 residents, Cambridge had the highest percentage of commuters who walked to work. Cambridge's major historic squares have changed into modern walking neighborhoods, including traffic calming features based on the needs of pedestrians rather than of motorists.
The Boston intercity bus and train stations at South Station, Boston, and Logan International Airport in East Boston, are accessible by subway. The Fitchburg Line rail service from Porter Square connects to some western suburbs. Since October 2010, there has also been intercity bus service between Alewife Station (Cambridge) and New York City.
In addition to the Cambridge Police Department, the city is patrolled by the Fifth (Brighton) Barracks of Troop H of the Massachusetts State Police. Owing, however, to proximity, the city also practices functional cooperation with the Fourth (Boston) Barracks of Troop H, as well. The campuses of Harvard and MIT are patrolled by the Harvard University Police Department and MIT Police Department, respectively.
The city of Cambridge is protected by the Cambridge Fire Department. Established in 1832, the CFD operates eight engine companies, four ladder companies, one rescue company, and two paramedic squad companies from eight fire stations located throughout the city. The Acting Chief is Gerard Mahoney.
Further educational services are provided at the Cambridge Public Library. The large modern main building was built in 2009, and connects to the restored 1888 Richardson Romanesque building. It was founded as the private Cambridge Athenaeum in 1849 and was acquired by the city in 1858, and became the Dana Library. The 1888 building was a donation of Frederick H. Rindge.