Cairo
Cairo, Egypt
edit- "Cairo," in The American Cyclopædia (1879)
- "Cairo" in the Encyclopaedia Britannica, 1st ed., Vol. II (1771)
- "Cairo (Egypt)," in Encyclopædia Britannica (11th ed., 1911)
Cairo, Illinois
edit- "Cairo (Illinois)," in The American Cyclopædia (1879)
- "Cairo (Illinois)," in Encyclopædia Britannica (11th ed., 1911)