1) J.K. Rowling's "Harry Potter" series of books has sold over 500 million copies worldwide and has been translated into 80 languages.

2) The French Revolution, which began in 1789, marked a major turning point in European history, leading to the overthrow of the monarchy and the rise of republicanism.

3) Cricket, originating in England, is a popular sport played in many countries and is known for its distinctive rules and terminology.

4) The sitcom "Friends" is known for its iconic Central Perk coffee shop, where the main characters often gather.