ANSWER
Because they represented the turning point of the war in favour of the Union.
After Vicksburg the Confederacy lost the control of the Mississippi and was split into two parts and after Gettysburg the Confederate armies were pinned down to stay on the mere defensive without being able to regain any effective strategic initiative.
Both were victories for the Union, Gettysburg on Union soil, Vicksburg in the Confederacy. The battles ended on consecutive days in 1863: Gettysburg on July 3, Vicksburg on July 4. Together they effectively became the turning point of the war. Gettysburg was a important defeat for Lee, while Vicksburg was a significant victory for Grant.
Vicksburg was the last Confederate stronghold on the Mississippi. Its capture by U.S. Grant led to the liberation of the river, and the isolation of all enemy units to the West of it.
Lee's defeat at Gettysburg spelt the end of his ambitions to invade the North. His battered army would be out of action for many months.
The two Union victories happened within a few hours of each other. The Confederates stayed on the defensive for the rest of the war.
Gettysburg turned back Lee's raid into Pennsylvania. Vicksburg put the Mississippi Valley in northern hands. Chattanooga opened up the road to Atlanta for Sherman's invasion of Georgia.
Right before the battle President Lincoln gave his well-known Gettysburg Speech.
It basically honored the dead solidiers who fought in the battle of Gettysburg and unified the Northerners
About 20,000 people were lost during this battle
The Battle of Gettysburg 1st to 3rd July 1863 was fought in and around the town of Gettysburg, Pennsylvania, and was described as a turning point for the Civil War. With that said, most historians now have retracked the idea that Gettysburg was a significant turning point.
Absolutely not-Gettysburg proved to be Lee's greatest defeat as a commander.
Gettysburg Was the Turning Point of the WarThe Location of the Battle Was Significant, Though AccidentalHeroism and Drama at Gettysburg Became LegendaryThe Battle Was EnormousAbraham Lincoln Used Gettysburg to Justify the Cost of the War
The Battle of Gettysburg and The Gettysburg Address.
Right before the battle President Lincoln gave his well-known Gettysburg Speech.
The Battle of Vicksburg ended on July 4, 1863
It shifted the initiative from the South to the North in the East.
It basically honored the dead solidiers who fought in the battle of Gettysburg and unified the Northerners
About 20,000 people were lost during this battle
The Battle of Gettysburg 1st to 3rd July 1863 was fought in and around the town of Gettysburg, Pennsylvania, and was described as a turning point for the Civil War. With that said, most historians now have retracked the idea that Gettysburg was a significant turning point.
Absolutely not-Gettysburg proved to be Lee's greatest defeat as a commander.
The Battle of Gettysburg was fought in Gettysburg, Pennsylvania.
The Battle of Gettysburg happened in Gettysburg Pennsylvania in June of 1863.
Gettysburg was the turning point in the American Civil War. Lee made numerous mistakes that cost him the battle.