Gandhara (IAST: Gandhāra) was an ancient Indo-Aryan civilisation in present-day northwestern Pakistan and eastern Afghanistan. The core of the region of Gandhara was the Peshawar and Swat valleys, extending up to Kabul and Bagram in the west and the Pothohar Plateau in the east. However, the cultural influence of Greater Gandhara extended as far as the Bamyan valley in the west and the Karakoram range in the northeast. The region was a central location for the spread of Buddhism to Central and East Asia, with many Chinese Buddhist pilgrims visiting the region.
Between the third century BCE and third century CE, Gāndhārī, a Middle Indo-Aryan language written in the Kharosthi script and linked with the modern Dardic language family, acted as the lingua franca of the region, and through Buddhism, the language spread as far as China based on Gandhāran Buddhist texts. Famed for its unique Gandharan style of art, the region attained its height from the 1st century to the 5th century CE under the Kushan Empire, which had their twin capitals at Kapiśi and Puruṣapura, ushering the period known as Pax Kushana.