1) The world's first stock exchange was established in Amsterdam in 1602.

2) The word "umbrella" contains three vowels: U, E, and A.

3) The Age of Exploration, during the 15th and 16th centuries, saw European explorers such as Christopher Columbus and Vasco da Gama reach new lands and establish trade routes.

4) Male seahorses are the ones who give birth to their offspring.