Maryland is a small state with a big history
Explore the maryland mosaic, a collection of historic firsts
The Maryland Mosaic is a collection of firsts in Maryland and in our nation, demonstrating the state’s leadership of and contribution to the evolution of our nation.
Many of these firsts, or Mosaic Pieces, show the progress and achievement of America. Some have created conflict and damaged our citizens. But all are important building blocks for our state and country.
Casselman River Bridge is the largest stone arch bridge in 1813, built on the new National Road.
The elegant Casselman River Bridge is the largest stone arch bridge in America in 1813.
Battle of Antietam is the single bloodiest day of the Civil War
The Battle of Antietam in September 1862 has soldiers of both sides falling for 12 straight hours. It is the single bloodiest day of the War (23,000 casualties of 132,00 engaged). Lincoln uses the battle to release the Emancipation Proclamation.
American Visionary Art Musuem
The American Visionary Art Museum opens its doors. It is unique and the first of its kind, bringing art to the public in a new an engaging way.
America turns 250 on July 4, 2026
MAryland has contributed over 142 “National firsts” to our nation
The Maryland Mosaic was created in celebration of the 250th anniversary of the United States. The Mosaic is a collection of people, places, events, buildings, documents, and objects. The collection provides a unique picture of this small border state through the lens of its geography, political influence, participation in military conflict, and long history of collaboration between Black and White citizens. It has a statewide reach as at least one Mosaic Piece represents every county and Baltimore City.
America’s 250th Anniversary & Maryland’s Four Centuries Project
More anniversaries to come
In 2029 Baltimore City will be 300 years old. In March of 2034, Maryland will commemorate 400 years as a colony and a state.
Maryland’s Four Centuries Project, a 501C3 non-profit grassroots organization, has taken the lead in presenting commemorative programming for these key anniversaries. Our 250th anniversary commemoration—the Maryland Mosaic—is unique in its focus on Maryland’s national firsts.
Support the Maryland Mosaic
Your donation to Maryland’s Four Centuries Project supports outreach efforts that will open the door to a broader appreciation of Maryland’s impact on American history.