Category:Sierra Leone in the 20th century

• Sierra Leone in the 1900s (1 C, 14 F)
• Sierra Leone in the 1910s (1 C, 54 F)
• Sierra Leone in the 1920s (1 F)
• Sierra Leone in the 1930s (3 C, 523 F)
• Sierra Leone in the 1940s (4 C, 18 F)
• Sierra Leone in the 1950s (2 C, 1 F)
• Sierra Leone in the 1960s (4 C, 169 F)
• Sierra Leone in the 1970s (1 C, 5 F)
• Sierra Leone in the 1980s (2 C, 2 F)
• Sierra Leone in the 1990s (2 C, 4 F)

*

• 20th-century maps of Sierra Leone (9 C, 12 F)
• 20th-century people of Sierra Leone (1 C)