(First) Manassas (Confederate)
(First) Bull Run (Union)
About 25 miles southwest of Washington the first major battle of the Civil War pits Irvin McDowell [US] against P. G. T. Beauregard [CS] and Joe Johnston [CS].
George Meade [US] defeats John Gordon [CS], Dick Ewell [CS], and R. H. Anderson [CS]. Anderson and Ewell accidentally became separated from the main body of Lee's Army. 8,000 Confederate soldiers are forced to surrender