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.
1 Secession and the American Civil War. 2  How the Compromise of 1850 Helped Delay the Civil War. 3  5 Things That Caused the U.S. Civil War. 4  Top 5 Causes of the Great Depression. 5  The Top 5 Causes That Led to World War I.