The Buddhism is a spiritual and philosophical doctrine which has his lead Siddhartha Gautama the man who called himself Buddha.
Buddhist practices like meditation are means of chaining yourself in order to develop the qualities of awareness, kindness and wisdom.
The impact of history on the world can hardly be overestimated. His teachings reached China, Japan, it impacted the culture, art and architecture in Indonesia, Laos, Sri Lanka, Vietnam and the whole of Southern Asia in short too.