The Braddock Road had been opened by…
March 1806 CE
It had received its name during the colonial-era French and Indian War of 1753–63 (also known as the Seven Years' War in Europe), when it was used by British General Edward Braddock accompanied by Colonel George Washington of the Virginia militia regiment in the ill-fated July 1755 Braddock expedition, an attempt to assault the French-held Fort Duquesne (later the city of Pittsburgh, Pennsylvania).
Construction of the Cumberland Road (which will later become part of the longer National Road) is authorized on March 29, 1806, by President Thomas Jefferson.
The new Cumberland Road will replace the wagon and foot paths of the Braddock Road for travel between the Potomac and Ohio Rivers, following roughly the same alignment until just east of Uniontown, Pennsylvania.
From there, where the Braddock Road turns north towards Pittsburgh, the new National Road/Cumberland Road will continue west to Wheeling, West Virginia (then part of Virginia), also on the Ohio River.