1) The concept of 3D printing, also known as additive manufacturing, was first introduced in the 1980s and has since revolutionized prototyping and small-scale production.

2) The International Cricket Council (ICC) is the governing body for the sport of cricket and oversees international tournaments and rankings.

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

4) The sunflower is not a single flower but a cluster of small flowers arranged in a spiral pattern.