1) The word "yesterday" contains three vowels: E, A, and A.

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

3) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.

4) The legislative branch in many democracies is responsible for making laws, representing the interests of the people, and providing checks and balances on the executive branch.