Maine, New Hampshire, Vermont, Connecticut, Rhode Island, Massachusetts;
New York, New Jersey, Pennsylvania;
Ohio, Indiana, Illinois.
Maryland was a slave state but did not join the Confederacy. Lincoln had Federal troops stationed in Baltimore to prevent any chance that Maryland would leave the Union.
California was not northern but was definitely union.
West Virginia (1863) and Nevada (1864) were admitted into the Union during the war. Kentucky was officially neutral in the war but supplied regiments to both sides.
It was known as the American Civil War, 12 Apr 1861 – 13 May 1865.
the United states is in the western and northern hemisphere
The United States is located in the Northern Hemisphere.
The vast majority of the United States (the 48 contiguous states, Alaska, Hawaii, Puerto Rico and Guam) is in the northern hemisphere. There are some territories that lie in the southern hemisphere.
The United States belongs in the northern hemisphere.
The United States is completely in the Northern Hemisphere, and ALMOST completely also in the western one.
Northern States abolished slavery between 1777 & 1804.
The United States is in the Northern Hemisphere, above the equator.
The United States is located in the Northern Hemisphere.
United States Northern Command was created in 2002.
Northern States Power Company was created in 1910.
The United States is in the Northern Hemisphere, above the equator.