1920s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s
2020s

15th
16th
17th
18th
19th
20th
21st
22nd
23rd
24th
25th

Categories

Categories:

Languages attested from the 1970s
1970s introductions
Constructed languages by decade of introduction
Constructed languages introduced in the 20th century