Colorado in the American Civil War came to his defense and consequently Chivington was never court–martialed. Colorado in the American Civil War The Colorado Territory was formally created in 1861 shortly before the bombardment of Fort Sumter sparked the American Civil War. Although sentiments were somewhat divided in the early days of the war, Colorado was only marginally a pro-Union territory (four statehood attempts were thwarted, largely by Confederate sympathizers in July 1862, February 1863, February 1864, and January 1866). Colorado was strategically important to both the Union and Confederacy because of the gold and silver mines there as both sides wanted to use the mineral
Siege artillery in the American Civil War siege artillery. The advent of rifled artillery made them obsolete. The Civil War was the first major war to see the use of rifled artillery. Rifling gave the guns greater velocity, range, accuracy, and penetrating power, making smoothbore siege guns obsolete. The ranges of these guns is somewhat problematic. The 6.4 inch (100-pounder) Parrott rifle had a maximum range of . However, the absence of suitable sights . and a good system of directing fire on targets that could not be seen from the gun, limited the effective range of the rifled guns. The bombardment of Fort Pulaski demonstrated that