1945
1946
1948
1949
1950
1951
1953
1954
1955
1956
1958

1900s
1910s
1920s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s

Categories

Categories:

1951 introductions
Fictional elements by year of introduction
Fictional elements introduced in the 1950s