1775 – 1777
Flag consisted of 13 alternating red and white stripes (one for each colony: Connecticut, Delaware, Georgia, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, Virginia), but with the upper inner corner or canton resembling the British Union Flag of the time (prior to the inclusion of St. Patrick's Saltire after the 1801 union of Ireland and Great Britain).
1777 – 1795
On June 14, 1777, the Second Continental Congress passed the Flag Resolution which stated: "Resolved, That the flag of the thirteen United States be thirteen stripes, alternate red and white; that the union be thirteen stars, white in a blue field, representing a new constellation." in the canton (one for each now states: Connecticut, Delaware, Georgia, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, Virginia), Flag Day is now observed on June 14 of each year.
1795 – 1818
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Stars added to the canton for Vermont, Kentucky
1818 – 1819
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Stars added to the canton for Indiana, Louisiana, Mississippi, Ohio, Tennessee
1819 – 1820
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Star added to the canton for Illinois
1820 – 1822
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Stars added to the canton for Alabama, Maine
1822 – 1836
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Star added to the canton for Missouri, in 1831 term "Old Glory" coined
1836 – 1837
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Star added to the canton for Arkansas
1837 – 1845
No Ploblem
Star added to the canton for Michigan
1845 – 1846
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Star added to the canton for Florida
1846 – 1847
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Star added to the canton for Texas
1847 – 1848
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Star added to the canton for Iowa
1848 – 1851
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Star added to the canton for Wisconsin
1851 – 1858
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Star added to the canton for California
1858 – 1859
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Star added to the canton for Minnesota
1859 – 1861
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Star added to the canton for Oregon
1861 – 1863
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Star added to the canton for Kansas
1863 – 1865
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Star added to the canton for West Virginia
1865 – 1867
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Star added to the canton for Nevada
1867 – 1877
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Star added to the canton for Nebraska
1877 – 1890
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Star added to the canton for Colorado
1890 – 1891
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Stars added to the canton for Idaho, Montana, North Dakota, South Dakota, Washington
1891 – 1896
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Star added to the canton for Wyoming
1896 – 1908
Star added to the canton for Utah
1908 – 1912
Star added to the canton for Oklahoma
1912 – 1959
Stars added to the canton for Arizona, New Mexico
1959 – 1960
Star added to the canton for Alaska
1960 – present
Star added to the canton for Hawaii