Answer:
The Battle of Gettysburg, the Battle of Antietam and the Battle of Bull Run were important Civil War battles.
Step-by-step explanation:
The Civil War was the military conflict that lasted from 1861 to 1865 between the southern states and the northern states of the United States (the Confederation v. the Union). The cause was a deep economic, social and political division between northern and southern states, which came to light above all in the question of slavery and which had deepened since around 1830. As a reaction to the election of the moderate opponent of slavery Abraham Lincoln as President, most of the southern states left the Union in the winter of 1860/61. The war began on April 12, 1861 with the Confederate bombardment of Fort Sumter. The conflict went through many battles, being the Battles of Antietam, Gettysburg, Bull Run, Vicksburg and Chancellorsville among the most important ones. It essentially ended with the surrender of the Northern Virginia Confederate Army at Appomattox Court House on April 9, 1865. The last Confederate forces surrendered on June 23, 1865 in Indian Territory. After the victory of the north, the southern states were accepted back into the Union as part of the reconstruction. The main consequences of the war were the strengthening of the central power and the final abolition of slavery in the USA, as well as the increased orientation of the country as an industrial state.