This document provides an overview of history from prehistory to the modern age. It describes key periods such as prehistory (beginning 5 million years ago), the Ancient World (starting with the invention of writing around 3500BC), the Middle Ages (476AD to 1492), the Early Modern Age (1492 to 1789 with discoveries and the printing press), and the Contemporary or Modern Age (beginning in 1789 with the Industrial Revolution and continuing to present). Each period is briefly characterized with some important developments and events. The document also provides links to learn more about each historical period.