History of the World: Every Year https://www.youtube.com/watch?v=ymI5Uv5cGU4 Human Population Through Time https://www.youtube.com/watch?v=PUwmA3Q0_OE The Spread of Buddhism https://www.youtube.com/watch?v=SMvQtRtT4-I

The videos above are not 100% accurate but they did their best.