This document discusses the origins and key teachings of Buddhism. It describes how Siddhartha Gautama founded Buddhism in the 5th century BCE after achieving enlightenment under the Bodhi tree in India. Some of the key events in his life that led to the development of Buddhist doctrine include leaving his wealthy life to seek answers to suffering, meditating extensively, and realizing the Four Noble Truths and Eightfold Path while under the Bodhi tree. The document also briefly outlines the divisions in Buddhism over time and how its teachings have spread worldwide.