a gesture of defiance, disrespect, or derision. Idioms. 2. cock a / one's snook, to thumb the nose: a painter who cocks a snook at traditional techniques.
Effect on the Civil War. The importance of the Emancipation Proclamation is that it altered the cause and reasons for the Civil War. At the onset, it was about the Unionâs attempt to bring the Confederates back into the fold. With the proclamation, things changed.
The Emancipation Proclamation broadened the goals of the Civil War. While slavery had been a major issue that led to the war, Lincoln's only mission at the start of the war was to maintain the Union. The Proclamation made freeing the slaves an explicit goal of the Union war effort.he Proclamation was issued in two parts. The first part, issued on September 22, 1862, was a preliminary announcement outlining the intent of the second part, which officially went into effect 100 days later on January 1, 1863, during the second year of the Civil War.