Inspired by this thread:
https://uselectionatlas.org/FORUM/index.php?topic=74197.0The ideas associated with a decade begin and end with a particular event, and not the change of year. What events marked changes in recent decades? Let's take a look:
1920s: Armistice to Stock market crash (1918-1929)
1930s: Stock market crash to Pearl Harbor (1929-1941)
1940s: Pearl Harbor to V-J Day (1941-1945)
1950s: V-J Day to JFK assassination (1945-1963)
1960s: JFK assassination to RFK assassination (1963-1968)
1970s: RFK assassination to Nixon resignation (1968-1973)
1980s: Nixon resignation to Operation Desert Storm (1973-1991)
1990s: Operation Desert Storm to WTC attacks (1991-2001)
2000s: WTC attacks to present (2001-present)
I'm not sure about the period of 1968-2001, so argue with me.