Battles of Lexington and Concord
The first military engagements of the American Revolutionary War, where "the shot heard round the world" was fired.
Where this fits on the timeline. For ten years the quarrel between Britain and its colonies had been a war of words and protests, from the Stamp Act in 1765 to the Boston Tea Party in 1773. On April 19, 1775, it finally became a shooting war. Lexington and Concord fired the first shots of the American Revolution, the war that would end in victory at Yorktown in 1781.
Why the British marched
A secret mission to disarm the colonists. Tensions in Massachusetts had reached a breaking point. Colonists were stockpiling muskets and gunpowder, so the British commander in Boston, General Thomas Gage, ordered about 700 soldiers to march the roughly 20 miles to Concord and seize the hidden military supplies. He hoped to do it quietly. But the patriots were watching.
The midnight ride
'The regulars are coming!' Patriots had set up a warning system. On the night of April 18, riders including Paul Revere and William Dawes galloped out from Boston to alert the countryside that British troops were on the move, so the colonial 'minutemen' (militia trained to be ready at a minute's notice) could gather. Revere was actually stopped by a British patrol before reaching Concord, but the warning had already spread from town to town.
The shot heard round the world
A single unknown shot began a revolution. At dawn the British reached Lexington, where about 70 minutemen stood waiting on the village green. No one knows who fired first, but that unknown shot, later called 'the shot heard round the world,' set off a volley that left eight colonists dead. The British pushed on to Concord, but the colonists had already moved most of the supplies. At Concord's North Bridge, militia turned the redcoats back.
The long road back to Boston
A retreat that became a nightmare. The real fighting came on the march home. As the exhausted British column trudged the miles back toward Boston, thousands of militiamen fired at them from behind trees, barns, and stone walls, a style of fighting very different from the neat European battle lines. By the end of the day the British had suffered roughly 250 to 300 casualties, far more than the colonists.
Why it matters
The colonists proved they would fight, and win a round. Lexington and Concord shattered the idea that a few thousand ordinary farmers could not stand up to the world's most powerful army. Within weeks, militia from across New England poured in to surround Boston, and the Second Continental Congress soon created a Continental Army under George Washington. The war of words was over; the war for independence had begun.
Further reading
Recommended, age-appropriate books to explore this further. Links open a library catalog search.
Key Takeaways
The battles of April 19, 1775, were the first fighting of the American Revolution, sparked by a British mission to seize colonial weapons at Concord
Riders including Paul Revere warned the countryside the night before, so the minutemen were ready
No one knows who fired the first shot at Lexington, later called “the shot heard round the world”
The colonists' hit-and-run tactics on the British retreat inflicted far heavier losses (about 250–300 British casualties)
The battles proved colonists would fight, led militias to surround Boston, and pushed Congress to form a Continental Army under George Washington