riddle - separate with a riddle, as grain from chaff screen sift, sieve, strain - separate by passing through a sieve or other straining device to separate out coarser elements; sift the flour
Causes of the Civil War: Abolitionism. The issue of slavery was further heightened by the rise of the Abolitionist movement in the 1820s and 1830s. Beginning in the North, adherents believed that slavery was morally wrong rather than simply a social evil.
The civil war occurred because after November 1917, many groups had formed that opposed Leninâs Bolsheviks. These groups included monarchists, militarists, and, for a short time, foreign nations. Collectively, they were known as the Whites while the Bolsheviks were known as the Reds.