Category:Fictional elements introduced in the 20th century

Subcategories

This category has the following 10 subcategories, out of 10 total.

0–9

Fictional elements introduced in the 1900s‎ (7 C)
Fictional elements introduced in the 1910s‎ (5 C)
Fictional elements introduced in the 1920s‎ (5 C)
Fictional elements introduced in the 1930s‎ (9 C, 1 P)
Fictional elements introduced in the 1940s‎ (9 C)
Fictional elements introduced in the 1950s‎ (9 C)
Fictional elements introduced in the 1960s‎ (10 C)
Fictional elements introduced in the 1970s‎ (10 C)
Fictional elements introduced in the 1980s‎ (9 C, 1 P)
Fictional elements introduced in the 1990s‎ (9 C)

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