Gandhara is a term referring to the Indian-Buddhist iconography, which was influenced by Greek artisans after the eastern conquests of Alexander the Great. It was an artistic style which became particularly prominent from the time of Kanishka in the 2nd century until around the 5th century AD. It also refers to the geographical ancient kingdom of Peshawar, which extended from the Swat valley to the Jalalabad area of Afghanistan.
To find out more about Gandharan art please see our relevant blog post: The Influence of Greek Art on Gandharan Statues.