1) The comedy group Monty Python, known for their surreal and irreverent humor, has had a significant influence on comedy and entertainment.

2) The European Union (EU) is a supranational organization comprising 27 member states that cooperate on various issues, including trade, economic integration, and common policies, while preserving individual national sovereignty.

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

4) The book series "The Chronicles of Narnia" by C.S. Lewis has sold over 100 million copies worldwide.