1896 – Birth of Viktor von Pressentin von Rautter, German World War I fighter ace.
1919 – A U.S. Navy flying boat, NC-4, begins an Atlantic crossing, flying by short stages from Long Island, N.Y., to Lisbon, Portugal; it will arrive 19 days later on May 28.
1935 – American aviatrix Amelia Earhart makes a non-stop flight from Mexico City to Newark, N.J., in 14 hours, 19 minutes.
1943 – First flight of the Savoia-Marchetti SM.95, an Italian four-engine transport.
1987 – American Eagle Flight 5452, a CASA C-212, crashes while landing at Mayagüez, Puerto Rico, due to maintenance issues and pilot error. All four passengers survive, while both crew are killed.
1987 – Death of Hugh William Lumsden “Dingbat” Saunders (shown), South African World War I fighter ace, high-ranking officer during and post-World War II.