Category:20th century in California

• 20th century in California by city‎ (20 C)

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• 20th-century disestablishments in California‎ (10 C, 1 P)
• 20th-century establishments in California‎ (10 C, 2 P)

0–9

• 20th-century people from California‎ (1 C)
• 1900s in California‎ (16 C, 7 P)
• 1910s in California‎ (16 C, 5 P)
• 1920s in California‎ (15 C, 8 P)
• 1930s in California‎ (17 C, 10 P)
• 1940s in California‎ (17 C, 75 P)
• 1950s in California‎ (15 C, 9 P, 1 F)
• 1960s in California‎ (18 C, 10 P)
• 1970s in California‎ (18 C, 15 P)
• 1980s in California‎ (20 C, 7 P)
• 1990s in California‎ (22 C, 6 P)

E

• 20th-century executions by California‎ (26 P)

L

• 20th century in Los Angeles County, California‎ (7 C, 7 P)

O

• 20th century in Orange County, California‎ (5 C, 2 P)

S

• 20th century in sports in California‎ (10 C)

Y

• Years of the 20th century in California‎ (100 C)

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• Cement, California
• History of California (1900–present)

0–9

• 1998 World Polo Championship

M

• Mesa Oil Field

P

• Painted Cave Fire

R

• Royal Lichtenstein Quarter-Ring Sidewalk Circus

S

• Santa Barbara Dodgers
• 1925 Santa Barbara earthquake