The document provides a high-level overview of the history of the universe, Earth, life, humans, and the beginnings of world and US history. It describes the formation of the universe in the Big Bang around 14 billion years ago, the formation of stars and galaxies including the Milky Way, the birth of the Sun and Earth around 4.5 billion years ago, the emergence of early life forms on Earth around 4 billion years ago and the evolution of multi-cellular organisms, plants and animals over time, the evolution of early humans and Homo sapiens in Africa around 200,000 years ago, and the spread of humans around the world, concluding with an explanation that world history began with the development of writing while marking the

1. In the beginning… The History of the World

7. Milky Way is 100,000 light years across The Sun is 30,000 light years from the center