| 2025 | Our Nation’s Capital: Washington, D.C. |
| 2024 | The History of Rock & Roll |
| 2023 | The Cold War (March 12,1947 – December 26,1991) |
| 2022 | The Gilded Age (1865-1913) |
| 2021 | The 1990s |
| 2020 | The United States Supreme Court | 2019 | Women Who Changed the World |
| 2018 | Greek & Roman Mythology |
| 2017 | The American Civil War |
| 2016 | The American Civil War |
| 2015 | The 1960’s in the United States |
| 2014 | America’s Fight for Independence: From Confederation to Republic 1777-1791 |
| 2013 | America’s Fight for Independence: The Stamp Act to the Ratification of the Constitution |
| 2012 | The Supreme Court |
| 2011 | Australia |
| 2010 | American Involvement in World War II |
| 2009 | The 1980s In America (1980 – 1989) |
| 2008 | Great American Disasters (1900 – 1999) |
| 2007 | World War I |
| 2006 | The 1970’s in the United States |
| 2005 | The World of the Aztecs, Incas, and Mayans (600 B.C. – 1572 A.D.) |
| 2004 | The 1950’s in the United States |
| 2003 | The American Civil War (1860 – 1865): East of the Mississippi River |
| 2002 | The United States Space Program (1912 – 2001): Robert Goddard to Dennis Tito |
| 2001 | The Colonization of North America (1513 – 1770): Contiguous 48 States only – No Canada nor Mexico |
| 2000 | The 1960’s in the United States |
| 1999 | The Roaring Twenties in the United States |
| 1998 | The Contiguous American West (1803 – 1912) |
| 1997 | The Crusades (1095 – 1350) |
| 1996 | The Economic Depression in the United States: The Stock Market Crash (1929) to Pearl Harbor (1941) |
| 1995 | United States Geography |
| 1994 | United States Geography |
| 1993 | ? |
| 1992 | Ancient Egypt (2000 B.C. – 1000 A.D.) |
| 1991 | World War II |
| … | ? |
Undated past topics:
The Soviet Union 1922-1989
The Olympic Games
Please help us complete this list. If you have any topics to add to this list or have the dates of the topics above that are undated, please leave a comment below or contact AGLOA.