Category: ... These pages contain the trends of millennia and centuries. ... (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s As a means of recording the passage of time, the 20th century was that century which lasted from 1901–2000 in the sense of the Gregorian calendar (1900–1999... The 21st century is the present century of the Gregorian calendar. ... The 22nd century (Gregorian calendar) will comprise the years 2101-2200. ...