1) The world's largest ocean, the Pacific Ocean, covers an area of approximately 63 million square miles.

2) The ancient city of Athens, Greece, is often considered the birthplace of democracy, where citizens had a say in the decision-making process.

3) The first computer mouse was invented by Douglas Engelbart in 1964 and consisted of a wooden shell and two metal wheels.

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