1) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.

2) The concept of civil rights pertains to the rights and freedoms that individuals possess as members of a society, including equality before the law, freedom of expression, and protection against discrimination.

3) The most-watched TV series finale in the United States was "MAS*H," with an estimated 105 million viewers.

4) Honey never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible.