Apr 8 BC The Buddha [Siddhartha Gautama], Founder of Buddhism whose birthday is commonly celebrated on this day [or May 26], born in Lumbini, Shakya Republic (modern-day Nepal) (d. c. 483 BC) 599 BC Famous Birthdays by Year 551 BC Famous Living People by Age 20-29 30-39 40-49 50-59 80-89 Over 90