Sorry, gents, but April 19 was truly the shot heard round the world. There are a flock of Leinxton's that were so named within a couple years after April 19, 1775. Like Lexington Kentucky and Lexington Virginia. It was because of Lexington that the 2d Continental Congress created the Continental Army in June 1775 and made GW its commander, after which he proceeded directly to Boston where his Army was.
Sinking a British ship was small potatoes. Driving the British Army and Navy out of Boston was monumental and encouraged the 2d Continental Congress to take the next, gigantic step of the Declarartion.
The immediate consequence of that was England sending an armada and fresh troops to beat the crap out of GW and the Continental Army defending NYC. That was so successful that by December 1776 the Continental Army was pushed all the way back to the other side of the Delaware River. That's when GW, after several councils of war aided and abetted by Thomas Paine's The Crisis, decided to cross the icy Delaware River and take Trenton, not once, but twice. Then he chased the British Amy back to Princeton and beyond.
It still took 5 more years, Rochambeau and 15,000 French troops, and Admiral DeGrasse's fleet to prevent Clinton from reinforcing Corrnwallis at Yorktown in October 1781, the victory that convinced the British government that further efforts would be futile. Plus there were a bunch of British citizens, even members of Parliament, who were sympathetic to the American cause.
My dad grew up on a farm in western MA and later was awarded 2 DSC's in WW II.