Buddhism originated in India along the Gangi River in the 6th century BCE(i.e approx 2,600 years ago). Buddhism was started by Siddhartha Gautam(real name of gautam buddha).He … was born in Nepal.So,it was started in Nepal.  Buddhism originated in Northern India, and it has its roots in Vedic religions.uddhism was originated in India along the Ganges River because they considered that the river was holy and they thought if they made it official along the Ganges River it wou … ld be holy and more people would worship Buddha. 2 people found this useful.