
The Lexington Alarm announced, throughout the
American Colonies, that the
Revolutionary War began with the
Battle of Lexington
The Battles of Lexington and Concord on April 19, 1775 were the first major military actions of the American Revolutionary War between the Kingdom of Great Britain and Patriot (American Revolution), Patriot militias from America's Thirteen Co ...
and the
Siege of Boston
The siege of Boston (April 19, 1775 – March 17, 1776) was the opening phase of the American Revolutionary War. In the siege, Patriot (American Revolution), American patriot militia led by newly-installed Continental Army commander George Wash ...
on April 19, 1775. The goal was to rally patriots at a grass roots level to fight against the British and support the
minutemen
Minutemen were members of the organized New England colonial militia companies trained in weaponry, tactics, and military strategies during the American Revolutionary War. They were known for being ready at a minute's notice, hence the name. Min ...
of the
Massachusetts militia
This is a list of militia units of the Colony and later Commonwealth of Massachusetts.
* Ancient and Honorable Artillery Company of Massachusetts (1638)
* Cogswell's Regiment of Militia (April 19, 1775)
* Woodbridge's Regiment of Militia (April ...
.
Committees of correspondence
As the
British Crown
The Crown is a political concept used in Commonwealth realms. Depending on the context used, it generally refers to the entirety of the State (polity), state (or in federal realms, the relevant level of government in that state), the executive ...
and
Parliament
In modern politics and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: Representation (politics), representing the Election#Suffrage, electorate, making laws, and overseeing ...
policies created an increasingly greater divide with
American colonists
The colonial history of the United States covers the period of European colonization of the Americas, European colonization of North America from the late 15th century until the unifying of the Thirteen Colonies, Thirteen British Colonies a ...
, the
Sons of Liberty
The Sons of Liberty was a loosely organized, clandestine, sometimes violent, political organization active in the Thirteen American Colonies founded to advance the rights of the colonists and to fight taxation by the British government. It p ...
organization was founded.
Samuel Adams
Samuel Adams (, 1722 – October 2, 1803) was an American statesman, Political philosophy, political philosopher, and a Founding Father of the United States. He was a politician in Province of Massachusetts Bay, colonial Massachusetts, a le ...
led the creation of the
Committees of correspondence
The committees of correspondence were a collection of American political organizations that sought to coordinate opposition to British Parliament and, later, support for American independence during the American Revolution. The brainchild of Sa ...
, including the Committee of safety, to uphold the rights of colonists and communicate and respond to noteworthy events. Adams brought the issue before a town meeting in Boston on November 2, 1772. Soon the organization spread to other towns in Massachusetts and like-minded organizations were established by July 1773, in other colonies. A committee for intercolonial correspondence was established by Virginia's
House of Burgesses
The House of Burgesses () was the lower house of the Virginia General Assembly from 1619 to 1776. It existed during the colonial history of the United States in the Colony of Virginia in what was then British America. From 1642 to 1776, the Hou ...
. By 1774, there were committees established in every colony.
The network that was created allowed for planning and execution of activities when the colonial assemblies and the
Continental Congress
The Continental Congress was a series of legislature, legislative bodies, with some executive function, for the Thirteen Colonies of British America, Great Britain in North America, and the newly declared United States before, during, and after ...
were not in session. Although the committees were not started as revolutionary endeavors, according E. D. Collins' ''Committees of Correspondence'', "Its importance as a piece of revolutionary machinery can hardly be overestimated."
Towns developed the methods that they would use to manage and respond to dispatches, with Boston central to the overall network's operations. There were up to 8,000 delegates, or members, to the committee across the colonies, which became a mechanism for patriots to communicate with other patriots. Loyalists did not have a similar means to communicate throughout the colonies, which impacted the result of the war.
A false alarm was generated when the British removed 250 half-barrels of gunpowder from a powder house in
Charlestown, Massachusetts
Charlestown is the oldest Neighborhoods in Boston, neighborhood in Boston, Boston, Massachusetts, in the United States. Also called Mishawum by the Massachusett, it is located on a peninsula north of the Charles River, across from downtown Bost ...
on September 1, 1774. Thirteen boats carried 260 British soldiers to carry off with the gunpowder. A man warned that British soldiers were headed for
Cambridge
Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...
, initiating the
Powder Alarm
The Massachusetts Powder Alarm was a major popular reaction to the removal of gunpowder from a magazine near Boston by British soldiers under orders from General Thomas Gage, royal governor of the Province of Massachusetts Bay, on September 1 ...
. At about the same time, a communication was sent of the perceived threat, and a group of men left on horseback to investigate the happenings at the British camp. They reported that there was no movement there. In the meantime, a message that men were shot in Boston by the British was carried through Connecticut to New York by September 5 and the next day to Philadelphia, where the First Continental Congress was held on September 6. The Congress, with
Joseph Palmer, planned for a network of couriers to transport messages throughout the colonies. A Committee of safety was formed in October 1774 to evaluate the need for alarms and set them in motion. Its eleven members at the beginning of 1775 were
Benjamin Church, Richard Devens, Jabez Fisher,
John Hancock
John Hancock ( – October 8, 1793) was an American Founding Fathers of the United States, Founding Father, merchant, statesman, and prominent Patriot (American Revolution), Patriot of the American Revolution. He was the longest-serving Presi ...
,
William Heath
William Heath (March 2, 1737 – January 24, 1814) was an American farmer, soldier, and political leader from Massachusetts who served as a major general in the Continental Army during the American Revolutionary War.
Life and career
Heath ...
,
Azor Orne
Azor Orne (July 22, 1731 – June 6, 1796), sometimes spelled Azore, was a colonial American merchant, politician and patriot. In the years preceding the American Revolution, Orne built a controversial hospital to quarantine and help smallp ...
,
Joseph Palmer,
John Pigeon
John Pigeon (March 17, 1725 – February 5, 1778) was a merchant, a member of the Massachusetts Provincial Congress, and Massachusetts Commissary General during the American Revolution. Born in Boston he became a successful merchant and insurer b ...
,
Joseph Warren
Joseph Warren (June 11, 1741 – June 17, 1775), a Founding Father of the United States, was an American physician who was one of the most important figures in the Patriot (American Revolution), Patriot movement in Boston, Massachusetts, Bos ...
, Abraham Watson, and Benjamin White.
Realizing the ramifications of a communication going out that would result in men being mustered and commencing to fight,
Joseph Hawley, a member of the
Massachusetts Provincial Congress
The Massachusetts Provincial Congress (1774–1780) was a provisional government created in the Province of Massachusetts Bay early in the American Revolution. Based on the terms of the colonial charter, it exercised ''de facto'' control over th ...
, wrote on February 22, 1775,
Rides beginning April 18, 1775
Initial rides
At about 10:00 p.m., the night of April 18, 1775,
Joseph Warren
Joseph Warren (June 11, 1741 – June 17, 1775), a Founding Father of the United States, was an American physician who was one of the most important figures in the Patriot (American Revolution), Patriot movement in Boston, Massachusetts, Bos ...
asked
Paul Revere
Paul Revere (; December 21, 1734 O.S. (January 1, 1735 N.S.)May 10, 1818) was an American silversmith, military officer and industrialist who played a major role during the opening months of the American Revolutionary War in Massachusetts, ...
to contact
John Hancock
John Hancock ( – October 8, 1793) was an American Founding Fathers of the United States, Founding Father, merchant, statesman, and prominent Patriot (American Revolution), Patriot of the American Revolution. He was the longest-serving Presi ...
and
Samuel Adams
Samuel Adams (, 1722 – October 2, 1803) was an American statesman, Political philosophy, political philosopher, and a Founding Father of the United States. He was a politician in Province of Massachusetts Bay, colonial Massachusetts, a le ...
in Lexington about the movement of British troops. Warren and Hancock were members of the Committee of safety and Revere had been watching the British troops movements as part of a committee of Boston and delivered messages for the Committee of safety. Warren also asked
William Dawes
William Dawes Jr. (April 6, 1745 – February 25, 1799) was an American soldier, and was one of several men who, in April 1775, alerted minutemen in Massachusetts of the approach of British regulars prior to the Battles of Lexington and Concor ...
to ride to Lexington.
During the nighttime ride to Lexington, Revere ensured that men in Charlestown sent lantern signals to alarm neighboring colonists that the British were coming. He learned from Richard Devens, another safety committee member, that ten British officers had been on the road leaving Lexington. He notified the captain of the militia men at Medford and alarmed others on his way to Lexington.
After meeting with Adams and Hancock, Revere and Dawes set off to warn colonists in Concord. They preceded the British, led by General
Thomas Gage
General Thomas Gage (10 March 1718/192 April 1787) was a British Army officer and colonial administrator best known for his many years of service in North America, including serving as Commander-in-Chief, North America during the early days ...
, as they marched to Concord to destroy patriots' stores of military weapons and equipment.
Responding to the call to arms, colonists went to Concord and fought the British.
Dispatches sent beginning April 19

On April 19, 1775,
Joseph Palmer of the
Committee of Safety issued a dispatch to be carried by post riders, men who delivered mail throughout the colonies. The purpose of the call to arms was to have militias in five colonies rally to support the
minutemen
Minutemen were members of the organized New England colonial militia companies trained in weaponry, tactics, and military strategies during the American Revolutionary War. They were known for being ready at a minute's notice, hence the name. Min ...
of the
Massachusetts militia
This is a list of militia units of the Colony and later Commonwealth of Massachusetts.
* Ancient and Honorable Artillery Company of Massachusetts (1638)
* Cogswell's Regiment of Militia (April 19, 1775)
* Woodbridge's Regiment of Militia (April ...
.

A number of post riders carried the "Lexington Alarm" message throughout a network of mail routes in
Massachusetts
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
,
Connecticut
Connecticut ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the south. ...
,
Rhode Island
Rhode Island ( ) is a state in the New England region of the Northeastern United States. It borders Connecticut to its west; Massachusetts to its north and east; and the Atlantic Ocean to its south via Rhode Island Sound and Block Is ...
, and
New Hampshire
New Hampshire ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
.
Isaac Bissell delivered the message west of Worcester to
Springfield, Massachusetts
Springfield is the most populous city in Hampden County, Massachusetts, United States, and its county seat. Springfield sits on the eastern bank of the Connecticut River near its confluence with three rivers: the western Westfield River, the ea ...
, south to
Hartford, Connecticut
Hartford is the List of capitals in the United States, capital city of the U.S. state of Connecticut. The city, located in Hartford County, Connecticut, Hartford County, had a population of 121,054 as of the 2020 United States census, 2020 ce ...
and in other areas in the state over six days.
Israel Bissell (no known relationship) conveyed the message to
Worcester, Massachusetts
Worcester ( , ) is the List of municipalities in Massachusetts, second-most populous city in the U.S. state of Massachusetts and the list of United States cities by population, 113th most populous city in the United States. Named after Worcester ...
, throughout eastern and southern Connecticut to
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
,
New Jersey
New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...
, and
Philadelphia
Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
.
Copies of the manuscript, handbills, and newspapers were circulated to other locations, like Maryland, North Carolina, and other areas.
Postriders rode through bad weather, poor road conditions, and moonless nights, which controlled whether they were able to travel three to five miles an hour.
Continued circulation
A copy reached
Baltimore
Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...
,
Maryland
Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...
, on April 26, where Mary Katherine Goddard printed the verbiage in the ''Baltimore Adviser'' and the ''Maryland Journal''. It was printed in the ''Maryland Gazetter'' the following day in
Annapolis, Maryland
Annapolis ( ) is the capital of the U.S. state of Maryland. It is the county seat of Anne Arundel County and its only incorporated city. Situated on the Chesapeake Bay at the mouth of the Severn River, south of Baltimore and about east ...
. On April 29, Alexander Purdie printed the message in the ''Virginia Gazette'' in
Williamsburg, Virginia
Williamsburg is an Independent city (United States), independent city in Virginia, United States. It had a population of 15,425 at the 2020 United States census, 2020 census. Located on the Virginia Peninsula, Williamsburg is in the northern par ...
.
Another copy of the dispatch went to
New Bern, North Carolina
New Bern, formerly Newbern, is a city in Craven County, North Carolina, United States, and its county seat. It had a population of 31,291 at the 2020 United States census, 2020 census. It is located at the confluence of the Neuse River, Neuse a ...
, where it was endorsed, and another to
Charleston, South Carolina
Charleston is the List of municipalities in South Carolina, most populous city in the U.S. state of South Carolina. The city lies just south of the geographical midpoint of South Carolina's coastline on Charleston Harbor, an inlet of the Atla ...
. The message was spread to other towns in Virginia, North Carolina, and South Carolina in May.
Subsequent messages
Updates provided information about the continuance of fights against the British and related news. New York communicated that
martial law
Martial law is the replacement of civilian government by military rule and the suspension of civilian legal processes for military powers. Martial law can continue for a specified amount of time, or indefinitely, and standard civil liberties ...
was implemented due to riots due to the outbreak of the war. Shipping became unsafe for Baltimore and other areas.
Notes
References
Bibliography
*
*
*
*
*
Further reading
*
* There is a map of Bissell's route on page 42.
*
{{Authority control
1775 in the Province of Massachusetts Bay
1775 in the Thirteen Colonies
American Revolution
Paul Revere
History of the Thirteen Colonies