1) The world's oldest known recipe is for beer and is over 4,000 years old.

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

3) The Mona Lisa, painted by Leonardo da Vinci, is one of the most famous and valuable artworks in the world.

4) The first modern health insurance policy was introduced in Germany in the late 19th century.