<p>I do the IB program, and we've covered the following areas of history:
Russia 1800s to Cold War
WWI
WWII
America 1920s
Middle East and Israel post-WWII
China colonial to Revolution</p>
<p>So, would I be better off taking SAT World or US? How much self-studying would I need to do to cover the gaps? What else is tested?</p>