Originally posted by: tcsenter
The shot heard round the world was fired at Lexington Common in Lexington, as a few dozen or so militia confronted an overwhelming number British regulars, several hundred strong, who were dispatched by General Gage to destroy a weapons depot containing weapons and powder in Concord. Yes, the Revolutionary War started over gun control and confiscation.
As the British came upon Lexington, they were confronted by the militia, lead by Captain John Parker. British Major John Pitcairn ordered his regulars to halt, then demanded the militia men to "Disperse, ye rebels, disperse!" (according to Pitcairn's recollection of the events). Their response was to shoot at him.
Although there is really no documentation of which side or which musket the shot actually came from, one might reasonably surmise that the well-trained British regulars would have exercised restraint when ordered to stand down by Major Pitcairn. While the overwhelmingly outnumbered, untrained, and highly anxious militia were the more likely to let off with a shot, if not out of sheer fright.