: In Philadelphia, members of Congress gathered to commemorate the 200th anniversary of the Great Compromise of 1787, which established the dual-chamber (House and Senate) system of the U.S. government.
: American voice actress known for roles in JoJo's Bizarre Adventure and Nier: Automata .
: English actor, known for roles in The Fearless Vampire Killers and Are You Being Served? , died of a heart attack at 71. Harry Ayres : Renowned New Zealand mountaineer and guide. What Happened on On This Day Sexteen July 1987
: Great Britain performed a nuclear test at the Nevada Test Site in the United States.
: Moroccan athlete Said Aouita set a new world record in the 2000m run with a time of 4:50.81. : In Philadelphia, members of Congress gathered to
: New York Yankees first baseman Don Mattingly hit his fourth grand slam of the season, tying the American League record. He also tied a record for hitting home runs in six consecutive games.
: American actress known for her roles in 90210 and Nip/Tuck . : English actor, known for roles in The
: The U.S. State Department sought an explanation from Pakistan regarding a plot to illegally export nuclear-related materials, specifically beryllium and maraging steel, from the U.S. for its nuclear program.