Tecumseh (1768 - 1813), grew up in the Ohio Country during the American Revolutionary War and the Northwest Indian War, where he was constantly exposed to warfare. With Americans continuing to move west after the British ceded the Ohio Valley to the new United States in 1783, the Shawnee moved farther northwest. In 1808, they settled Prophetstown in present-day Indiana. With a vision of establishing an independent Native American nation east of the Mississippi under British protection, Tecumseh worked to recruit additional tribes to the confederacy from the southern United States.
During Tecumseh's boyhood, white frontiersmen slew his father Pucksinwah at the Battle of Point Pleasant during Lord Dunmore’s War in 1774. The frontiersmen had crossed onto Indian land in violation of a recent treaty. Tecumseh resolved to become a warrior like his father and to be "a fire spreading over the hill and valley, consuming the race of dark souls".
At age 15, after the American Revolutionary War ended in 1783, Tecumseh joined a band of Shawnee who aimed to stop the white invasion of their lands by attacking settlers' flatboats traveling down the Ohio River from Pennsylvania. In time, Tecumseh came to lead his own band of warriors. For a while, these Indian raids became so effective that river traffic virtually ceased.
During the War of 1812, Tecumseh's confederacy allied with the British and helped in the capture of Fort Detroit. Prior to the raid, Chief Tecumseh delivered a powerful speech upon a rock that is preserved to this day at Fort Malden. After the U.S. Navy took control of Lake Erie in 1813, the Native Americans and British retreated. American forces caught them at the Battle of the Thames, and killed Tecumseh in October 1813. With his death, his confederation disintegrated, and the Native Americans had to move west again, yet Tecumseh became an iconic folk hero in American, Aboriginal and Canadian history.
Here is also, however, the text of quite a different-toned speech which Tecumseh allegedly delivered to a band of Osages on his way back home in 1811. It was reported by John Dunn Hunter, an Anglo-American whose parents had been killed by the Kickapoos, and who had been later raised among the Osages: