1896 - Eight provinces in the Philippines were declared under martial law by the Spanish Governor General Ramon Blanco. This included the provinces of Batangas, Rizal, Cavite, Nueva Ecija as well as the nearby areas.
1962 - Japan conducts a test of the NAMC YS-11, its first aircraft since the war and its only successful commercial aircraft from before or after the war.
1974 - A Belgrade-Dortmund express train derails at the main train station in Zagreb killing 153 passengers.
1974 - Powerful bomb explodes at the Mitsubishi Heavy Industries headquarters in Marunouchi, Tokyo, Japan. 8 killed, 378 injured. Eight left-wing activists are arrested on May 19, 1975 by Japanese authorities.