The festival is usually celebrated by Hindus in other parts of the planet such as North America, Europe, Africa, Asia and the Caribbean. It is usually celebrated by some non-Hindu communities which include Jains and new religious movements including the Hare Krishnas. The earliest reference to Janmashtami is found in https://slwqtrp40739.blogocial.com/krishna-janmashtami-2021-status-46718435