The Trinity test, the first detonation of a nuclear weapon, took place at the Alamogordo Bombing Range in New Mexico. It is widely believed that Oppenheimer named the test 'Trinity' as a reference to a poem by John Donne that Jean Tatlock had introduced him to, as a tribute to her.

Jean Tatlock died by suicide in her apartment in San Francisco. Her father discovered her body the following day. This event is significant due to the circumstances surrounding her death, her relationship with Oppenheimer, and subsequent conspiracy theories suggesting foul play.