July 15

1799 – The Rosetta Stone is found in the Egyptian village of "Rosetta" during Napoleon's Egyptian Campaign.
1943 – Astronomer Jocelyn Bell Burnell is born, known for discovering the first four pulsars.
1975 – The Apollo–Soyuz Test Project features the dual launch of an Apollo spacecraft and a Soyuz spacecraft on the first joint Soviet-United States human-crewed flight.