The Trinity Test was the first detonation of a nuclear weapon, conducted by the United States on July 16, 1945. It took place at the White Sands Proving Ground in New Mexico as part of the Manhattan Project, which aimed to develop atomic bombs during World War II. The test involved a plutonium-based bomb, known as "The Gadget," and resulted in a massive explosion, creating a mushroom cloud that rose over 40,000 feet. The Trinity Test marked a significant moment in history, demonstrating the destructive power of nuclear weapons. The success of this test led to the subsequent use of atomic bombs on the cities of Hiroshima and Nagasaki in Japan, ultimately contributing to the end of World War II. The test also initiated the nuclear age, raising ethical and political questions about the use of such weapons.