Princeton's WordNet(5.00 / 1 vote)Rate this definition: 1  fauna, zoology(noun) all the animal life in a particular region or period. the fauna of China; the zoology of the Pliocene epoch. 2  zoology, zoological science(noun) the branch of biology that studies animals.
The American Civil War, widely known in the United States as simply the Civil War as well as other sectional names, was a civil war fought from 1861 to 1865 to determine the survival of the Union or independence for the Confederacy.
The American Civil War lasted for just four years, from 1861 Ã± 1865 and it is often also known as the War Between the States. It was the event where 11 Southern States that supported Slavery declared their succession from the United States, and announced the Formation of the Confederate States of America.