“Vesākha (Pali;Sanskrit: Vaiśākha, Devanagari: वैशाख), Wesak or Vesak, also known as Buddha Purnima and Buddha Day, is a holiday observed traditionally by Buddhists on different days in Sri Lanka, Nepal, Tibet, Bangladesh, Bhutan, India, and the South East Asian countries of Philippines, Singapore, Vietnam, Thailand, Cambodia, Laos, Malaysia, Myanmar and Indonesia, and other places all over the world.[1][2][3] Sometimes informally called “Buddha’s Birthday”, it actually commemorates the birth, enlightenment (nirvāna), and death (Parinirvāna) of Gautama Buddha in the Theravada or southern tradition.[4]” *wikipedia