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.
By Robert McNamara. The Emancipation Proclamation was a document signed into law by President Abraham Lincoln on January 1, 1863 freeing the slaves then held in the states in rebellion to the United States.nd as a practical matter, the slaves in the Confederacy were not free until the Union Army took possession of a region. The Emancipation Proclamation was issued as part of the presidentâs role as commander-in-chief during wartime, and was not a law in the sense of being passed by the U.S. Congress.