1) The game of baseball, often referred to as "America's pastime," is played between two teams of nine players and has a rich history dating back to the 18th century.

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

3) Chinese mythology, deeply intertwined with Chinese culture and history, includes deities such as the Jade Emperor, Guanyin, and the Monkey King (Sun Wukong). It incorporates elements of Taoism, Confucianism, and Buddhism and features legendary creatures like dragons, phoenixes, and Qilin.

4) The Indian Ocean is the third-largest ocean and is characterized by its warm waters and diverse marine life.