Important dates in U. S. history timeline | Timetoast Timelines

Jul 8, 1787

1780s: Constitution of the United States of America (1787)

https://www.britannica.com/list/25-decade-defining-events-in-us-history
Nov 21, 1794

1790s: Whiskey Rebellion (1794)

https://www.britannica.com/list/25-decade-defining-events-in-us-history
Aug 1, 1803

1800s: Louisiana Purchase (1803)

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Sep 21, 1815

1810s: Battle of New Orleans (1815)

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Jul 16, 1823

1820s: Monroe Doctrine (1823)

https://www.britannica.com/list/25-decade-defining-events-in-us-history
Sep 3, 1829

1830s: Era of the Common Man (1829–37)

https://www.britannica.com/list/25-decade-defining-events-in-us-history
Jun 28, 1848

1840s: Treaty of Guadalupe Hidalgo (1848)

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Aug 7, 1857

1850s: Dred Scott Decision (1857)

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Aug 1, 1863

1860s: Battle of Gettysburg (1863)

https://www.britannica.com/list/25-decade-defining-events-in-us-history
Nov 7, 1876

1870s: Battle of the Little Bighorn (1876)

https://www.britannica.com/list/25-decade-defining-events-in-us-history