One hundred and fifty years ago today was the start of the three-day long, Battle of Gettysburgh. Gettysburgh was the 12th bloodiest battle of the US Civil War.
Wikipedia has a good article on the first day and Michael J. Leclerc has a good overview article for the entire Battle of Gettysburg.
As far as I know none of my ancestors or their siblings fought at Gettysburg. Did any of yours do so?