While evolution occurs in this timeline, the focus is shifted more toward behavioral development.
To really gain some perspective, try using the bottom scroll bar.
For more information, move your cursor over the bars.
This is not supposed to be a definitive history of humans. My intention is to help people realize how long it took humans to develop to where we are today, and how many of those developments occured relatively recently. Dates were accurate 20 years ago. Much has been discovered since then.