3 April 2012 Updated at 19:37 ET
Who, What, Why: How many soldiers died in the US Civil War?
About 26,000 soldiers were killed, wounded or missing after the Battle of Antietam, making 17 September 1862 one of the bloodiest days in US history
In today's Magazine
A study suggests a previously widely accepted death toll of the US Civil War may actually be way under the mark. How many did perish in this conflict, fought before the era
link-
http://www.bbc.co.uk/news/magazine-17604991