- 15 July 1916 – The aerospace and defense corporation Boeing is founded by William Boeing as Pacific Aero Products Company
- 16 July 1945 – The Trinity nuclear test (pictured), the first ever detonation of a nuclear weapon, takes place in the Jornada del Muerto desert in New Mexico
- 18 July 1968 – Semiconductor chip maker Intel is founded by Gordon E. Moore, Robert Noyce, and Arthur Rock
- 21 July 1969 – Neil Armstrong became the first man to set foot on the Moon as part of the Apollo 11 mission