This playlist has a series of videos that take a big look at history and includes a scientific perspective.
The ORIGINAL Crash Course World History playlist. Videos 1-22 are all reviews from previous units.
An additional playlist of World History content. WOOT!
This is not history related BUT it is fantastic.
There are plenty of history related videos but other interesting topics as well.
This playlist has the World History videos you have watched on days I have been absent. They are a great summary.