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.
Written By: American Protective Association (APA), in U.S. history, an anti-Catholic, anti-immigrant group that briefly acquired a membership greater than 2,000,000 during the 1890s. A successor in spirit and outlook to the pre-Civil War Know-Nothing Party, the American Protective Association was founded by Henry F. Bowers at Clinton, Iowa, in 1887. It was a secret society that played upon the fears of rural Americans about the growth and political power of immigrant-populated cities.