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 most important events in Abraham Lincoln's life are: when his mother died at the age of 34 when he was only 9 years old due to the Milk Disease; When he freed the slaves w â¦ ith the emancipation proclamation that freed all the slaves in any slave states, and when he was murdered at the booth theater.e also wrote a very important document called the Emancipation Proclamation which stated â¦ that slaves would be freed in confederate territory, not in the north. Abraham Lincoln let slaves become free in 1866 and was the first president to lead the country into war.