- 1690s Salem - witch trials, racism, puritanism
- 1870s California - mining, rail, Chinatown, racism
- 1890s Hawai'i - colonization, coup d'etat, rebellion
- 1900s New York City - gangs, immigration
- 1910s - World War One
- 1910s New York City - women's suffrage
- 1910s New York City - Triangle Shirtwaist Fire
- 1910s/1920s - Mary Pickford
- 1920s London - gangs, girl gangs, suffragettes
- 1920s New York City - suffragettes
- 1920s/1930s New York City - Harlem Renaissance
- 1930s - Hollywood
- 1950s - Nuclear Powers, Red Scare
oct 24 2015 ∞
jun 12 2019 +