Early in this battle, probing attacks were launched at Blackburn's Ford, but one side's main attack was eventually launched across Sudley Springs Ford. Francis Bartow and Barnard Bee helped stop that attack at Henry Hill, and the arrival of fresh units from the Shenandoah by rail under Joe Johnston caused Union forces under Irwin McDowell to retreat and then rout across the Stone Bridge. However, 
Early in this battle, probing attacks were launched at Blackburn's Ford, but one side's main attack was eventually launched across Sudley Springs Ford. Francis Bartow and Barnard Bee helped stop that attack at Henry Hill, and the arrival of fresh units from the Shenandoah by rail under Joe Johnston caused Union forces under Irwin McDowell to retreat and then rout across the Stone Bridge. However, Confederate forces under P.G.T. Beauregard were unable to pursue due to exhaustion. For 10 points, this July 1861 clash in northern Virginia, the first major battle of the Civil War.
Early in this battle, probing attacks were launched at Blackburn's Ford, but one side's main attack was eventually launched across Sudley Springs Ford.