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Flag of the United States - Wikipedia
flag of the United States of America - Encyclopedia Britannica
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The American flag and other national symbols - USAGov
Flags of the United States | American, Historical, Symbolic
Facts about the United States Flag | Smithsonian Institution
The United States Flag – History & Facts - Legends of America
Star-Spangled Banner - Smithsonian Institution
Flags, Symbols & Currency of United States - World Atlas
Flag of United States - Flagpedia.net