Question: when was the first atom bomb dropped on japan by us

title: Atomic bombings of Hiroshima and Nagasaki
text: During the final stage of World War II , the United States dropped nuclear weapons on the Japanese cities of Hiroshima and Nagasaki on August 6 and 9 , 1945 , respectively . The United States had dropped the bombs with the consent of the United Kingdom as outlined in the Quebec Agreement . The two bombings killed at least 129,000 people ( most of whom were civilians ) and remain the only use of nuclear weapons in the history of warfare . 

Answer: answer: During the final stage of World War II , the United States dropped nuclear weapons on the Japanese cities on August 6 and 9 , 1945,  and remain the only use of nuclear weapons in the history of warfare.
answer: The first of the two nuclear weapon bombings the United States dropped on Japan was during the final stage of World War II on August 6th, 1945.