| United States -- Civilization -- 20th century. Matches 5 items |
| United States -- Civilization -- 20th century -- Chronology. Matches 1 item |
| United States -- Civilization -- 20th century -- Fiction. Matches 1 item |
| United States -- Civilization -- 20th century -- Miscellanea. Matches 1 item |
| United States -- Civilization -- 21st century. Matches 14 items |
| United States -- Civilization -- 21st century -- Humor. Matches 1 item |
| United States -- Civilization -- African American influences. Matches 5 items |
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United States -- Civilization -- Afro-American influences. SEE: United States -- Civilization -- African American influences Matches 5 items
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| United States -- Civilization -- Asian influences. Matches 1 item |
| United States -- Civilization -- Chronology. Matches 1 item |
