The atomic bomb, more specifically: the discovery of atomic fission.
The third one because the founders didn’t wanted to give each person rights so that what happened to them with the British wouldn’t happen again in the future
The Gulf of Tonkin Resolution authorized President Lyndon Johnson to “take all necessary measures to repel any armed attack against the forces of the United States and to prevent further aggression” by the communist government of North Vietnam.
The demand for slave increased because Growing rice required much labor, and the demand for slave labor rose. both have something to do with money.