1971    In accordance with the Uniform Monday Holiday Act passed by the U.S. Congress in 1968, observation of Memorial Day occurs on the last Monday in May for the first time, rather than on the traditional Memorial Day of May 30.

1979    Park Chung-hee, President of South Korea is assassinated by KCIA head Kim Jae-kyu. Choi Kyu-ha becomes the acting President; Kim is executed the following May.

1991    In Croatia, forces of the Yugoslav People's Army bombard Dubrovnik after laying siege to the city since May.