1) Democracy is a system of government in which power is vested in the people, who exercise it through elected representatives. It allows for political participation, freedom of speech, and protection of individual rights and liberties.

2) The Great Wall of China is not visible from space without aid, contrary to popular belief.

3) The concept of reinsurance, which is insurance for insurance companies, originated in the 17th century.

4) The average person spends about 4 years of their life driving a car.