Template:Categories by decade

Categories by decade:

• The 1900s
• The 1910s
• The 1920s
• The 1930s
• The 1940s
• The 1950s
• The 1960s
• The 1970s
• The 1980s
• The 1990s
• The 2000s
• The 2010s
• The 2020s

A navigation box for the various master categories by decade, since there isn't a consistent naming convention for the categories. Created as a template so that the list only needs to be updated once each decade instead of two dozen times.