1) The word "pencil" contains two vowels: E and I.

2) The Great Wall of China is not visible from space without aid, contrary to popular belief.

3) The American Civil Rights Movement, led by figures like Martin Luther King Jr., fought for equal rights and helped bring about significant social and legislative changes.

4) The FIFA World Cup is the most-watched sporting event globally, with billions of viewers tuning in for the tournament held every four years.