| Parts of Speech-OB | 8 | May 16, 2013 |
| US Reconstruction/Gilded Age-OB | 25 | March 20, 2013 |
| Nowicki Science Terms. | 18 | September 13, 2012 |
| Poetry Terms-OB | 18 | February 27, 2012 |
| Modern America-OB | 20 | October 5, 2010 |
| Civil Rights-OB | 25 | October 5, 2010 |
| Cold War-OB | 19 | October 5, 2010 |
| Prosperity and Depression-OB | 24 | October 5, 2010 |
| America and World Wars-OB | 30 | October 5, 2010 |
| Progressive Era-OB | 19 | October 4, 2010 |
| American Imperialism-OB | 15 | October 4, 2010 |
| Guilded Age-OB | 28 | October 4, 2010 |
| Reconstruction-OB | 18 | October 4, 2010 |
| Civil War-OB | 19 | October 4, 2010 |
| Westward Expansion-OB | 9 | October 4, 2010 |
| Federalist Era-OB | 9 | October 4, 2010 |
| Constitution-Supreme Court Cases-OB | 20 | September 28, 2010 |
| Constitution-Amendments-OB | 17 | September 28, 2010 |
| Constitution-OB | 16 | September 28, 2010 |
| Early Government-OB | 9 | September 28, 2010 |
| Colonial Era-OB | 10 | September 28, 2010 |