1) The Mongol Empire, under the leadership of Genghis Khan, became the largest contiguous empire in history, spanning from Asia to Europe.

2) Elvis Presley, often referred to as the "King of Rock and Roll," has sold over one billion records worldwide.

3) Political ideologies such as liberalism, conservatism, socialism, and communism shape and influence policies, governance, and societal values in different countries and contexts.

4) The national flower of Japan is the cherry blossom, which holds great cultural significance and is celebrated during the annual cherry blossom festivals.