[caption id="" align="alignleft" width="438"] map courtesy of PBS[/caption] For many, today means the last day at the office before a long weekend goes into effect for Independence Day. However, Civil War buffs and historians recognize July 2nd as day two of another important event in American history - the Battle of Gettysburg in 1863. In the three hours of fighting on this evening 146 years ago, roughly 10,000 casualties were totaled for the Army of Northern Virginia and the Army of the Potomac each. Confederate Lieutenant General James Longstreet said, "best three hours' fighting ever...