1) The first smartphone, the IBM Simon, was introduced in 1992 and featured a touchscreen, email capabilities, and apps such as a calendar and calculator.

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

3) The world's largest species of shark, the whale shark, can reach lengths of up to 40 feet (12 meters) and weigh over 20 tons.

4) The Super Bowl is the championship game of the National Football League (NFL) in the United States and is one of the most-watched television events each year.