Cyrus McCormick Farm, Birthplace of the Mechanical Reaper

In the summer of eighteen thirty-one, a twenty-two-year-old Virginian walked behind a horse-drawn contraption through a field of oats outside the village of Steeles Tavern and changed the trajectory of human civilization. The young man was Cyrus Hall McCormick. The contraption was the first practical mechanical grain reaper. The consequences were beyond anything he could have imagined that July day.

The McCormick family farm, Walnut Grove, sits along the North River in the hills west of the Blue Ridge. For years Cyrus's father Robert had tinkered with a mechanical reaper without success. In the spring of eighteen thirty-one, Cyrus took over the project. He was twenty-two years old. Within weeks he had a working prototype. The demonstration in John Steele's oat field near Steeles Tavern was convincing: the machine harvested grain five times faster than a man with a scythe, with far less labor. Crucially, it worked on hilly, irregular ground where many earlier prototypes had failed.

Historians usually note that a young enslaved man named Jo Anderson worked alongside McCormick in the demonstration, raking the cut grain from the platform as the machine moved through the field. Anderson's labor was essential to the machine's success, but McCormick received all of the credit and the patent, filed in eighteen thirty-four.

The business implications unfolded over the next two decades. McCormick moved production to Chicago in eighteen forty-seven, where he could ship machines west to the prairie farms that needed them most. His Chicago factory eventually became the International Harvester Company, one of the largest manufacturing corporations in American history. The reaper made Great Plains grain farming economically viable at scale, which fed a growing industrial nation, supported westward expansion, and, by the time of the Civil War, gave the Union a food production advantage the Confederacy could not match.

The original blacksmith shop, gristmill, and eighteen twenty-two manor house still stand here. Virginia Tech owns the property today.