1) The universe is estimated to be around 13.8 billion years old.

2) The first video game console, the Magnavox Odyssey, was released in 1972 and featured games such as Pong and Table Tennis.

3) 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.

4) A newborn kangaroo is about 1 inch (2.5 centimeters) long and weighs less than a gram.