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17781776 Club

At Fort Pitt, the United States signs its first treaty with an Indian nation

The Lenape agree to let American troops cross their land on the way to Detroit.

In the fall of 1778, the Continental Army wanted to strike the British at Detroit, but the only route ran straight through Lenape land in the Ohio Valley. On September 17, at Fort Pitt, where the Allegheny and Monongahela rivers meet, American commissioners and Lenape leaders signed a treaty granting the United States free passage and a promise of Lenape warriors against Great Britain. In return, Congress promised clothing, supplies, and a fort to shelter Lenape families. It marked the first formal treaty the United States ever signed with a Native American tribe…

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More from September 17
1862

Along a Maryland creek, the single bloodiest day in American history

Lee's invasion stalls near Sharpsburg as Union and Confederate armies trade nearly 23,000 casualties in twelve hours.
1849

Harriet Tubman slips away from a Maryland plantation, bound for Pennsylvania

Her brothers Ben and Henry start north with her, then turn back; she keeps walking alone.
1787

The Constitution is signed at Independence Hall; the convention adjourns

Three delegates refuse to sign, but 39 others put their names to the new frame of government.
19621776 Club
Neil Armstrong and Jim Lovell are among the pilots and engineers chosen to fly Gemini and Apollo.
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More from Revolution & Founding
1812

Hull crosses the Detroit River; his army occupies Sandwich, Upper Canada

The Army of the Northwest pushes onto British soil weeks after the U.S. declared war, planting American forces on the Canadian side of the river.
1787

Confederation Congress charts a path to statehood for the Ohio territory; slavery banned within its bounds

The Northwest Ordinance divides the vast British cession into future states and sets aside a township plot for public schools in every settlement.
1798

It is now a federal crime to publish "false or malicious" criticism of officials; Adams signs the Sedition Act

The last of four laws Congress has passed since June, the act caps a Federalist push to silence perceived French sympathizers working against the government.
1790

Washington signs the Residence Act; the Potomac wins the capital over Philadelphia

A federal district up to ten miles square will rise near Georgetown, with Philadelphia holding the government as a ten-year stopgap while the new city is built.
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