Birth of Buddhism

One of the earliest confederations of South Asia was that of the Shakya clan, whose capital was Kapilavastu, Nepal. One of its princes was Gautama Buddha, Siddharta Gautama (563–483 BCE), who renounced his royalty to lead an ascetic life and came to be known as the Buddha ("the enlightened one"). By 260 BCE, most of North India and southern Nepal were ruled by the Maurya Empire. It was during this period that Buddhism first came to Nepal; it is claimed that Buddha and his disciple Ananda visited the Kathmandu Valley and stayed for a time in Patan. Although not all of Nepal was under Maurya occupation, there is evidence of at least the influence of Maurya Emperor Ashoka the Great, the legendary Buddhist proselytiser and ruler from 273 BCE to 232 BCE. Ashoka was a visitor to Kathmandu in this period and, as a follower of Buddhism, he visited Lumbini, the birthplace of Buddha, and erected stupas in Kathmandu. His daughter married a local prince and further spread the religion. The remains of a Buddhist convent have been found in the Kathmandu Valley.

As the Kirat dynasty came to an end in the valley, parts still remained in the eastern mountains, ( ref: History of Limbuwan ) where they are considered to be the forefathers of today's Limbu and Rai castes.

By 200 CE, Buddhism had waned, and was replaced by Hinduism, brought by the Licchavis, who invaded from northern India and overthrew the last Kirati king. The Hindus also introduced the caste system (which still continues today) and ushered in a classical age of Nepalese art and architecture.