1) The concept of reinsurance, which is insurance for insurance companies, originated in the 17th century.

2) The largest known dinosaur, Argentinosaurus, weighed around 70-100 tons and measured up to 100 feet in length.

3) The longest-running TV show in history is "The Simpsons," which has been on the air since 1989 and has over 700 episodes.

4) The concept of self-driving cars, or autonomous vehicles, is being actively developed by companies such as Tesla, Google (Waymo), and Uber.