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: Slavery and Control of the Government. Throughout the first half of the 19th century, Southern politicians sought to defend slavery by retaining control of the federal government.
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.