Because it was a revolutionary act in defiance of the elected government of the USA.
To most people living in the US at the time, the Civil War as we know it today, was called the "war of rebellion.
The War of Rebellion is an alternate name for the American Civil War, generally used by ex-Confederate states. It can be used to denote a degree of support for the secession of these states, though this is not universal.
The official name of the American Civil War is the "War of the Rebellion"
By seceding from the USA, they were in a state of rebellion.
War Between the States The War of the Rebellion War for Southern Independence Second American Revolution War of Northern Aggression War in Defense of Virginia Mr. Lincoln's War War of Secession War of the Insurrection Slaveholders' Rebellion Slaveholders' War The Great Rebellion War to Save the Union War for Abolition The War War to Prevent Southern Independence
It was considered the first civil war because it was a group of Americans fighting the Federal government.
The Civil War, or the War of the Rebellion
To most people living in the US at the time, the Civil War as we know it today, was called the "war of rebellion.
The War Between the States, the War of the Rebellion
The US Civil War was an un-declared war; and was a war of rebellion on the part of the south.
Anytime a nation is fighting itself (normally WITHOUT outside help) it is generally considered a civil war. The US Civil War (1861-1865) was also called the US War of Rebellion. Which is why the Southerners in the US Civil War were called "Rebels."
When the Southern States seceded, it was considered an act of treason. It was believed, in essence, that they were destroying the Union that they had helped to form.
Civil War War Between The States War of Southern Rebellion War of Northern Aggression
The war of rebellion. Remember, "Rebels."
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Mexico. Shortly after the Civil War ended, Mexico threw the French out.
The War of Rebellion is an alternate name for the American Civil War, generally used by ex-Confederate states. It can be used to denote a degree of support for the secession of these states, though this is not universal.