30. Concentration of Federal troops at Chambersburg, Pa.
31. Steamers Freeborn and Anacosta attacked rebel batteries at Aquia Creek, Va.
31. Gen. Harney superseded by Gen. Lyon in Missouri.
31. Gens. Banks and Fremont commissioned as Major-Generals.
31. Ex-Gov. Pratt of Maryland, arrested and taken to Washington Navy Yard.
June 1. British Government prohibited U. S. and rebel armed vessels from bringing any prizes to British ports.
1. Charge of U. S. cavalry at Fairfax Court House, Va., Lieut. Tompkins, commanding.
2. Federal batteries erected at the Rip Raps, near Fortress Monroe.
2. Gen. Twiggs appointed Maj.-Gen. Confederate army.
3. Gen. Beauregard took command of the rebel forces at Manassas Junction.