During the American Civil War, the Commonwealth of Pennsylvania played a critical role in the Union, providing a substantial supply of military personnel...

Battles of the American Civil War were fought between April 12, 1861, and May 12–13, 1865 in 19 states, mostly Confederate (Alabama, Arkansas, Florida...

The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States between the Union ("the North")...

The origins of the American Civil War are rooted in the desire of the Southern states to preserve the institution of slavery. Historians in the 21st century...

The bibliography of the American Civil War comprises books that deal in large part with the American Civil War. There are over 60,000 books on the war...

The eastern theater of the American Civil War consisted of the major military and naval operations in the states of Virginia, West Virginia, Maryland...

During the American Civil War, Pennsylvania was the second largest state in the Union, and Harrisburg was the state's capital. Located at the intersection...

During the American Civil War, Philadelphia was an important source of troops, money, weapons, medical care, and supplies for the Union. Before the Civil War...

German-Americans were the largest ethnic contingent to fight for the Union in the American Civil War[citation needed]. More than 200,000 native-born Germans...

America (CSA), also known as the Confederacy or South, during the American Civil War. The Union was led by Abraham Lincoln, the 16th president of the...