Events History Events on May 22 By Jamie Tracy 22 May 99 Views History Events on May 22 Ceylon adopts a new constitution, becoming a republic and changing its name to Sri Lanka, and joins the Commonwealth of Nations. #Sri_Lankan_Constitution_of_1972 In 1972 Apollo 10's lunar module flies within 8.4 nautical miles (16 km) of the moon's surface. #Apollo_10 In 1969 Chiang Kai-shek