Wikimedia
Wikipedia: Battle of Antietam
This Wikipedia article on the bloodiest battle in American history gives background information on the battle, the battle itself, and the aftermath.
Curated OER
National Park Service: Antietam National Battlefield
The National Park Service offers a wealth of information on Antietam, the battle, casualties, flags, and weapons. A very worthwhile site.
Curated OER
National Park Service: Cwsac: Civil War Battle Summaries: The Battle of Fredericksburg, 1862
An excellent review of the events in 1862 in the run-up to the Battle of Fredericksburg and the battle itself. Hyperlinks to Lee's and Burnside's official reports. Includes PDF (requires Adobe Reader).
Civil War Home
Home of the American Civil War: Ambrose Burnside
A biography of Ambrose Burnside outlining the bright spots and disasters of his military career. Included is an explanation of the term "sideburns." From "Who Was Who in the Civil War" by Stewart Sifakis.
Civil War Home
Home of the American Civil War: Battle of Antietam
An overview of the Battle of Antietam along with accounts of the battle written by those who fought. Information is from several sources.
Curated OER
National Park Service: Petersburg National Battlefield: The Crater
Read about the bloody debacle known as the Battle of the Crater, a Union attempt to shorten the siege of Petersburg. See how thousands of lives were lost with no tactical change between the two armies.
Ohio History Central
Ohio History Central: Ambrose Burnside
A thorough biography of Ambrose Burnside and his military career. Read about his command of the Ninth Corps in several battles and as commander in the Department of the Ohio.
American Battlefield Trust
American Battlefield Trust: Civil War Biography: Ambrose E. Burnside
A biographical profile of Ambrose Burnside, a career officer who commanded Union troops in a number of Civil War battles with a mixture of successes and failures.
Curated OER
National Park Service: Cwsac: Civil War Battle Summaries: Battle of Antietam
This site, which is provided for by the National Park Service, gives a brief overview of the events at the Civil War Battle of Antietam.
Library of Congress
Loc: America's Story: The Battle of Antietam
What was the bloodiest battle in all American history? The Battle of Antietam , during the Civil War, wins this dubious honor. The Library of Congress has more information about this famous battle along with some actual photographs.
Google Cultural Institute
Google Cultural Institute: Ambrose Burnside
This visual website from Google Cultural Institute shares background information and photos about Ambrose Burnside.