Ruwanwelisaya in the context of "Chola Dynasty"

Buddhism, a religion founded by Gautama Buddha, first arrived in modern-day Afghanistan through the conquests of Ashoka (r. 268–232 BCE), the third emperor of the Maurya Empire. Among the earliest notable sites of Buddhist influence in the country is a bilingual mountainside inscription in Greek and Aramaic that dates back to 260 BCE and was found on the rocky outcrop of Chil Zena near Kandahar.

Many prominent Buddhist monks were based in Afghanistan during this period: Menander I (r. 165–130 BCE), a Greco-Bactrian king, was a renowned patron of Buddhism and is immortalized in the Milinda Panha, a Pali-language Buddhist text; Mahadharmaraksita, a 2nd-century BCE Indo-Greek monk, is said to have led 30,000 Buddhist monks from "Alasandra, the city of the Yonas" (a colony of Alexander the Great, located approximately 150 kilometres or 93 miles to the north of modern-day Kabul) to Sri Lanka for the dedication of the Mahathupa in Anuradhapura, according to the Mahavamsa (Chap. XXIX); Lokaksema, a 2nd-century Kushan monk, travelled to the Chinese capital city of Luoyang during the reign of the Han dynasty, and was the first translator of Mahayana Buddhist scriptures into the Chinese language.

Mahadharmarakkhita (Sanskrit: Mahadharmaraksita, literally "Great protector of the Dharma") was a Greek (in Pali:"Yona", Sanskrit: "Yavana", lit. "Ionian") Buddhist master, who lived during the 2nd century BCE during the reign of the Indo-Greek king Menander.

In the Mahavamsa, a key Pali historical text, he is recorded as having travelled from “Alasandra” (thought to be Alexandria of the Caucasus, around 150 kilometers north of today's Kabul, or possibly Alexandria of the Arachosians), with 30,000 monks for the dedication ceremony of the Maha Thupa ("Great stupa") at Anuradhapura in Sri Lanka, when it was completed shortly after the death of the Sri Lankan king Dutthagamani Abhaya (r. 161 - 137 BCE).