1787 – Delegates gather in Philadelphia to draw up US constitution.
1853 – Gail Borden, land surveyor, newspaper publisher and inventor, patents his process for condensed milk.
1896 – Lowest US temperature in May recorded (-10 degrees F at Climax, Colorado)
1908 – 1st passenger service in an airplane.
1918 – Sunday baseball is made legal in Washington, D.C.
1927 – “Ain’t She Sweet?” hits #1 on the singles chart by Ben Bernie.
1938 – “The Adventures of Robin Hood”, directed by Michael Curtiz, William Keighley and starring Errol Flynn and Olivia de Havilland is released.
1940 – Boston’s Jimmie Foxx HR goes over Comisky Park’s left field roof.
1948 – US grants Israel de facto recognition.
1949 – US President Harry Truman signs bill establishing a rocket test range at Cape Canaveral.
1961 – Bus with 1st group of Freedom Riders bombed & burned in Alabama.
1967 – NY Yankee Mickey Mantle hits career HR #500 off Baltimore Oriole’s Stu Miller.
1969 – Last Chevrolet Corvair built.
1980 – US Department of Health & Human Services begins operation.
1987 – Colt revolver (Peacemaker) of 1873 sells for $242,000.
1994 – Dave Winfield passes Frank Robinson for 12th on RBI list with 1,617.
1998 – Seinfeld’s final 2-part episode “The Finale” airs on NBC to 76.3M viewers (commercials priced at $2M for 30 seconds)
2005 – Former USS America (CV-66), a decommissioned supercarrier of the US Navy, deliberately sunk in the Atlantic ocean after four weeks of live-fire exercises. Largest ship ever to be disposed of as a target in a military exercise.
2018 – Melania Trump, wife of US President Donald Trump, is treated in hospital for a benign kidney condition.
2019 – US Supreme Court strikes down federal law banning sports gambling in most states.