Another important Otto was Otto Frank (1889-1980), the father of Anne Frank. Otto is one of those quintessential German masculine names (others that come to mind: Karl, Ludwig, Franz, Claus, Johann, Leopold, Sigmund and Wolfgang). Today the name Otto is most commonly used in Finland but itâs also a Top 100 choice in Sweden. It appears to have fallen out of fashion in Germany, though.
Trinity was the code name of the first detonation of a nuclear weapon, conducted by the United States Army on July 16, 1945, as part of the Manhattan Project.
The  Trinity  explosion was the world's first nuclear weapon test. The United States first began developing nuclear weapons during World War II under the order of President Franklin Roosevelt in 1939, motivated by the fear that they were engaged in a race with Nazi Germany to develop such a weapon.he United States is one of the five nuclear weapons states permitted to maintain a nuclear arsenal under the Nuclear Non-Proliferation Treaty, of which it was an original drafter and signatory on 1 July 1968 (ratified 5 March 1970).