John Hunt Morgan leads 867 Confederate partisans on a raid into Kentucky to harass the supply line for the Federal Army of the Ohio.
Federals and Confederates on the Virginia Peninsula regroup as Robert E. Lee probes the Federal defenses and George B. McClellan makes yet another plea for more men.
A new law is enacted in which the U.S. government would grant land to states and territories to establish institutions of higher learning.
Abraham Lincoln issues a call for more volunteers while sidestepping the defeats on the Virginia Peninsula that prompted the call.
A new law is enacted that lays the foundation for what would eventually become the first transcontinental railroad.
A new U.S. law is enacted in the continuing effort to raise money for the war. This builds upon the notion of income taxation.