What impact did the battle of gettysburg have on the course of the civil war?

The Battle of Gettysburg took place from 1 to 3 July 1863 at the small town of Gettysburg in Pennsylvania a few miles north of the border with Maryland during the Civil War. With more than 43,000 victims, of which more than 5,700 dead, it was one of the bloodiest battles on the American continent and applies together with Vicksburg and Chattanooga and next to Antietam and Perryville in 1862 and the fall of Atlanta and Philip Sheridan's campaign in Shenandoah Valley in 1864 as one of the crucial turning points of the Civil War. With the defeat of the Northern Virginia Army under General Robert E. Lee ended the penultimate Offensive of the Confederation on the territory of the Union. The initiative then essentially moved to the Union.  

The three-day battle started on the first day with a encounter that the Confederates won. The Northern Virginia Army attacked the Potomac Army on both wings the following day, but failed to break the positions of the Norsemen, so that day ended in a draw. General Lee tried to force the decision on the third day with an assault on the center of the Potomac army, but failed despite a temporary break in the positions of the Northerners. The attacking force of the Northern Virginia Army was exhausted, and the Union finally obtained a victory.

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.