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Congress adopts the Stars and Stripes | June 14, 1777 - HISTORY
Betsy Ross flag - Wikipedia
Flag Timeline - US History
Flag Day (United States) - Wikipedia
flag of the United States of America - Encyclopedia Britannica
Grand Union Flag - Wikipedia
History of the American Flag | A Capitol Fourth - PBS
Facts about the United States Flag | Smithsonian Institution
The Mysterious Origins of the American Flag | HISTORY
Today in History - June 14 | Library of Congress
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