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

2) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.

3) The United Nations Security Council is responsible for maintaining international peace and security, with five permanent members (China, France, Russia, the United Kingdom, and the United States) holding veto power over resolutions.

4) The avocado, native to Central and South America, is a versatile fruit known for its creamy texture and nutritional benefits. Avocados are rich in healthy fats, fiber, and vitamins, making them a popular ingredient in salads, sandwiches, guacamole, and smoothies. They have gained significant popularity in recent years, becoming a staple in healthy eating and plant-based diets.