who was responsible for spread of buddhism in sri lanka
Buddhism in Sri Lanka According to traditional Sri Lankan chronicles such as the Dipavamsa, Buddhism was introduced into Sri Lanka in the third century BCE after the Third Buddhist council by Mahinda Bhikkhu, son of Emperor Ashoka, during the reign of Devanampiya Tissa of Anuradhapura. During this time, a sapling of the Bodhi Tree was brought to Sri Lanka and the first monasteries and Buddhist monuments were established. Among these, the Isurumuniya and the Vessagiri remain important centers of worship. He is also credited with the construction of the Pathamaka cetiya, the Jambukola vihāra and the Hatthālhaka vihāra and the refectory. The Pali Canon, having previously been preserved as an oral tradition, was first committed to writing in Sri Lanka around 30 BCE.
Decline of Buddhism in India A steady decline of Buddhism in India set in during the 1st millennium CE in the wake of the White Hun invasion followed by Turk-Mongol raids.,[1] though it continued to attract financial and institutional support during the Gupta era (4th to 6th century) and the Pala Empire (8th to 12th century).[2][3]