The first nuclear bomb test was given the code name Trinity. The site of 9/11 became known as Ground Zero.
https://www.afnwc.af.mil/About-Us/History/Trinity-Nuclear-Test.aspx >The Trinity Site is now part of the White Sands Missile Range and is owned by the Department of Defense. >Ground zero is marked by an obelisk made of black lava rock, with an attached commemorative sign.
The worker who found it was Frank Silecchia. https://www.usatoday.com/story/news/nation/2014/05/13/911-ground-zero-museum-cross-world-trade-center/8907003/ >"It was a sign,'' Frank Silecchia would recall, "a sign that God hadn't deserted us." >On the second Sunday after the attacks, he came upon a man in a Franciscan's brown robe giving communion to cops, firefighters and hardhats. >This was Brian Jordan, who'd lost his friend and fellow Franciscan, Mychal Judge, in the attack.
