Kushan Empire

The first king to call himself "Kushan" on his coinage: Heraios (AD 1–30).

...the prince [elavoor] of Guishuang, named thilac [Kujula Kadphises], attacked and exterminated the four other xihou. He established himself as king, and his dynasty was called that of the Guishuang [Kushan] King. He invaded Anxi [Indo-Parthia] and took the Gaofu [Kabul] region. He also defeated the whole of the kingdoms of Puda [Paktiya] and Jibin [Kapisha and Gandhara]. Qiujiuque [Kujula Kadphises] was more than eighty years old when he died."

"His son, Yangaozhen [probably Vema Tahk (tu) or, possibly, his brother Sadaṣkaṇa], became king in his place. He defeated Tianzhu [North-western India] and installed Generals to supervise and lead it. The Yuezhi then became extremely rich. All the kingdoms call [their king] the Guishuang [Kushan] king, but the Han call them by their original name, Da Yuezhi."

Representation of entities from Greek mythology and Hellenistic syncretism are:

Reges Bactrianorum legatos ad eum, amicitiae petendae causa, supplices miserunt

The summer capital of the Kushan Empire in Begram has yielded a considerable amount of goods imported from the Roman Empire—in particular, various types of glassware. The Chinese described the presence of Roman goods in the Kushan realm:

The Kushans are again recorded to have sent presents to the Chinese court in 158–159 during the reign of Emperor Huan of Han.

I, the Mazda-worshipping lord, Shapur, king of kings of Iran and An-Iran... (I) am the Master of the Domain of Iran (Ērānšahr) and possess the territory of Persis, Parthian... Hindestan, the Domain of the Kushan up to the limits of Paškabur and up to Kash, Sughd, and Chachestan.