1) The Cuban Missile Crisis in 1962 brought the United States and the Soviet Union to the brink of nuclear war during the Cold War.

2) Male seahorses are the ones who give birth to their offspring.

3) The concept of compound interest can be attributed to the ancient Babylonians, who used it in their banking practices.

4) The Civil Rights Act of 1964 in the United States outlawed discrimination based on race, color, religion, sex, or national origin.