What legislation did the Republican party pass during the Civil War that was unrelated to the war?

There was a progressive income tax originally passed in 1862 but that was mostly to insure the payment of war bonds so was war connected, although 1 step removed.





The National Banking Acts of 1863 and 1864 were not directly related to the war but I doubt there is any major legislation passed between 1861 - 1865 that could not be connected in some manner to the war.