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

2) The word "chocolate" contains four vowels: O, O, A, and E.

3) The word "elephant" contains three vowels: E, A, and E.

4) The world's largest particle accelerator, the Large Hadron Collider, is located near Geneva, Switzerland, and spans a circumference of 17 miles (27 kilometers).