What were the main events from 1861 to 1865 of the civil war?

What were the main events from 1861 to 1865 of the civil war? What were three key battles? Why Were They Significant?

Re-enactors raise 1861 U.S. flag at Cleveland, Tenn., ceremony

Re-enactors raise 1861 U.S. flag at Cleveland, Tenn., ceremony
CLEVELAND, Tenn. — Nearly 100 spectators gathered at noon Monday to watch Civil War re-enactors raise a replica of the 1861 United States flag — with only 33 stars — at the Bradley County Courthouse plaza.
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General Stonewall Jackson?s 1861 Civil War Battle Plan

In 1861 and the beginning of the Civil War, Thomas J. Jackson, the West Virginia Confederate General who would later become known as “Stonewall” Jackson, believed he had the key to a quick and sure victory for the newly formed Confederacy. His ambitious plan was to invade the United States from the panhandle of northern [...]

General Stonewall Jackson’s 1861 Civil War Battle Plan

In 1861 and the beginning of the Civil War, Thomas J. Jackson, the West Virginia Confederate General who would later become known as “Stonewall” Jackson, believed he had the key to a quick and sure victory for the newly formed Confederacy. His ambitious plan was to invade the United States from the panhandle of northern [...]