1) The Russian Revolution in 1917 resulted in the overthrow of the monarchy and the establishment of a communist government under Vladimir Lenin.

2) Greek mythology includes a wide array of gods and goddesses, such as Zeus, Poseidon, Athena, Aphrodite, and Apollo. These deities were believed to govern various aspects of life and the natural world and were often depicted with human characteristics and engaging in dramatic stories and conflicts.

3) The New York Stock Exchange (NYSE) is the largest stock exchange in the world.

4) Emma Watson is a British actress and activist known for her role as Hermione Granger in the "Harry Potter" film series. She has since starred in films such as "The Perks of Being a Wallflower" and has been actively involved in promoting gender equality and women's rights.