Category:20th-century introductions

• ► 1900s introductions‎ (28 C)
• ► 1910s introductions‎ (27 C, 1 P)
• ► 1920s introductions‎ (29 C, 4 P)
• ► 1930s introductions‎ (28 C, 5 P)
• ► 1940s introductions‎ (28 C, 4 P)
• ► 1950s introductions‎ (32 C, 1 P)
• ► 1960s introductions‎ (32 C, 4 P)
• ► 1970s introductions‎ (29 C, 1 P)
• ► 1980s introductions‎ (29 C, 2 P)
• ► 1990s introductions‎ (28 C, 3 P)

0–9

• ► 20th-century inventions‎ (108 P)

A

• ► Amusement park attractions introduced in the 20th century‎ (30 C)

B

• ► Bakelite‎ (2 P)

C

• ► Cameras introduced in the 20th century‎ (20 C)
• ► 20th-century comics debuts‎ (12 C)
• ► Computer-related introductions in the 20th century‎ (13 C)

F

• ► Fictional characters introduced in the 20th century‎ (11 C)
• ► Fictional elements introduced in the 20th century‎ (10 C)

G

• ► Games and sports introduced in the 20th century‎ (12 C)

L

• ► Languages attested from the 20th century‎ (11 C, 2 P)

M

• ► Mass media franchises introduced in the 20th century‎ (11 C)

N

• ► 20th-century neologisms‎ (10 C, 22 P)

P

• ► Products introduced in the 20th century‎ (114 C, 4 P)

R

• ► 20th-century robots‎ (10 C)

T

• ► Telecommunications-related introductions in the 20th century‎ (10 C)

V

• ► Vehicles introduced in the 20th century‎ (16 C)

W

• ► Weapons and ammunition introduced in the 20th century‎ (89 C)