01-11-2015, 03:48 PM
I ranked it on how easy they were for me, easiest on top. With that said, the 2-3 days was mostly the time it took me to run through the Wise Owl study guides (base library) to get the basic terms and ideas set in my mind before sitting the test. Honestly, the only ones on your list that I'm expecting to take over a week for studying in my own plans is the Rise/Fall USSR, Civil War & Reconstruction, & Astronomy. Those are 2-weeks for history and a month for Astronomy.