America / States / Maryland
7th State · Est. 1788

Maryland.
The Old
Line State.

Maryland was founded in 1634 as a Catholic haven in a Protestant England — a tolerant experiment that preceded the First Amendment by 150 years. The Chesapeake Bay made the colony rich. Frederick Douglass was born enslaved on the Eastern Shore in 1818 and escaped to become the conscience of abolition. In September 1814, Francis Scott Key watched Fort McHenry’s flag fly through a 25-hour British bombardment and wrote the lines that became the anthem. Antietam absorbed 23,000 casualties in twelve hours in 1862 — the bloodiest single day in American history.

12.4k
Square Miles
6.2M
Population
1788
Statehood
The Living Map

Find Your Place
on the Map.

Maryland’s 23 counties and Baltimore City stretch from Garrett County’s Appalachian peaks in the west across the Piedmont and Chesapeake Bay tidewater to Ocean City’s barrier island on the Atlantic coast.

Maryland · Live Grid
MD · Hex 0 · 0 Open · 0 Inscribed
N MD
MD-000 Open
Open Featured Inscribed Click any hex to inspect
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Sample America 250 commemorative certificate for Maryland

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The Star-Spangled State

America in Miniature

Maryland was founded as a haven for Catholics in a Protestant England — a tolerant experiment that preceded the First Amendment by 150 years. Lord Baltimore’s 1634 charter established a proprietary colony where religious difference was legally protected under the Act Concerning Religion of 1649. That Maryland promptly developed a plantation economy built on enslaved labor while championing religious tolerance captures the contradiction that ran through the state’s entire history: broad ideals, narrow practice.

The Chesapeake Bay made Maryland. Its 11,684 miles of tidal shoreline shaped everything — the tobacco economy of the colonial era, the oyster and crab harvests of the 19th century, the shipbuilding and trade that made Baltimore one of America’s great ports. The Bay’s tributaries reached deep into the interior, and the watermen who worked its waters developed a culture as distinctive as any in America: skipjacks, crab pots, deadrise workboats, and an intimate knowledge of tides that passed from father to son.

Fort McHenry gave the nation its anthem. In September 1814, a British fleet bombarded the fort at the entrance to Baltimore Harbor for 25 hours. Francis Scott Key, watching from a British ship where he was negotiating a prisoner exchange, saw the American flag still flying at dawn and wrote the poem that became “The Star-Spangled Banner.” The original flag — 30 by 42 feet — is preserved at the Smithsonian. The fort still stands on its Locust Point peninsula.

Maryland’s Civil War position was as fraught as any state’s. It was a slave state that stayed in the Union — partly by the Lincoln administration’s willingness to arrest the state legislature before it could vote on secession. Confederate sympathies ran deep in the Eastern Shore and southern Maryland; Union sentiment dominated the north and west. The bloodiest single day of the war, Antietam, was fought on Maryland soil in September 1862. Maryland supplied soldiers to both sides.

Today Maryland is defined by its relationship to Washington, D.C. Montgomery and Prince George’s Counties are essentially extensions of the federal city, housing hundreds of thousands of government workers, contractors, and their families. The National Institutes of Health, the National Security Agency, and NASA’s Goddard Space Flight Center all sit in Maryland. Yet the Eastern Shore remains one of the most rural and traditional landscapes on the East Coast, where skipjack races and blue crab season still set the calendar.

1632

Charter Granted

King Charles I grants Cecil Calvert, Lord Baltimore, a charter for the Maryland colony as a haven for English Catholics.

1649

Act of Toleration

Maryland passes the Act Concerning Religion, one of the first laws in the world mandating religious tolerance.

1729

Baltimore Founded

Baltimore Town is established at the mouth of the Patapsco River, growing into one of the great port cities of colonial America.

1788

Statehood

Maryland ratifies the Constitution as the seventh state on April 28.

1814

Star-Spangled Banner

Francis Scott Key writes “The Star-Spangled Banner” after watching Fort McHenry withstand a British bombardment during the War of 1812.

1830

B&O Railroad

The Baltimore and Ohio Railroad begins steam locomotive service — the first railroad to offer regular scheduled steam service in America.

1862

Battle of Antietam

The bloodiest single day in American military history unfolds near Sharpsburg; 22,700 casualties in one day stop Lee’s first invasion of the North.

1876

Johns Hopkins Opens

Johns Hopkins University opens in Baltimore as America’s first research university, transforming American higher education.

1954

Integration Begins

The University of Maryland begins integration before Brown v. Board; Thurgood Marshall, an NAACP lawyer from Baltimore, argues the landmark case.

1992

Camden Yards Opens

Oriole Park at Camden Yards opens in Baltimore, launching a nationwide movement of retro-style ballparks that transforms baseball stadium design.

Stories on the Map

Stories already on the map.

Real Maryland people who have placed their names — and their stories — into the hex grid. Each square mile, a chapter.

Browse the map
Evan Mercer
MD-210
Featured

A place where dreams are made

A place on the map. The story is yet to come.

View Story
MP
MD-105

Forever Home

Married 52 years next month. Built our whole life right here in Maryland. Thank you for every single one of those days.

View Story
RA
MD-009

Roots

My family has called Maryland home for five generations. My great-great-grandfather Anders arrived from Sweden in 1887 with seventeen dollar...

View Story
MC
MD-176

Beloved

My great-grandfather Henrik arrived from Norway in 1898. He worked the railroads through Maryland and saved for sixteen years before he coul...

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Patricia Lewis
MD-087

For Mom

My father was nineteen years old when he landed in Korea in November of 1950. He was a corporal in the Second Infantry Division. He was at t...

View Story
MC
MD-218

Remembrance

This is for the small towns of Maryland. The ones nobody writes songs about. The ones that raised us anyway.

View Story
By the Numbers

Maryland, in facts.

Star-Spangled Banner
1814
Written at Fort McHenry during the Battle of Baltimore
Statehood
1788
7th state — ratified April 28
Counties
23 + Balt.
23 counties plus Baltimore City as an independent city
Chesapeake Bay
11,684 mi
Miles of tidal shoreline — more than the U.S. West Coast
Blue Crab
#1 harvest
Maryland leads the nation in blue crab production
Share Maryland
Your Corner of the Old Line State

Maryland Wrote the National Anthem and Set the Table

Twenty-three counties and an independent city, from the Allegheny ridges to the Atlantic. Fort McHenry’s flag, Antietam’s twelve hours, the Chesapeake’s eleven thousand miles of shoreline, and the Naval Academy at Annapolis. Maryland holds more American consequence per square mile than almost any state. Hoist your banner.