Welcome to the Historical Marker Database
Marker of the WeekAnnouncement of the Atomic Age Foggy Bottom, Washington, DC
Danish physicist Niels Bohr announced the splitting of the atom here this week in 1939. He was quickly sworn to secrecy by Leo Szilard of Columbia University (shown here), who with Albert Einstein convinced President Roosevelt to start the Manhattan Project. He assisted with it after escaping Nazi-occupied Denmark in 1943. The world at large first learned of the Atomic Age in 1945 when the U.S. dropped the atomic bomb that ended World War II in Asia. Long-time Contributing Correspondent Richard E. Miller of Oxon Hill, Maryland, submitted this entry in 2011.
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Take a Tour of the DatabaseClick on the star button in the menu above. Repeat. Every time you click, you will be shown a different marker at random.
More Than 113,000 Entries!
Hundreds added weekly. One of our correspondents has stood in front of each historical marker or monument, taken its picture, and entered its location and other information. An editor has reviewed and approved each entry. For the very few markers without a photograph, their location was carefully researched.
No other national historical marker list can make this claim, and a number of them borrow information from us, some without permission.
Markers Recently Added
|Today •||Melchor Ocampo Ciudad de Mexico, Ciudad de México, Mexico|
|•||Antonio García Cubas Ciudad de Mexico, Ciudad de México, Mexico|
|•||Un feu dans la nuit / A Light in the Night Matane, Quebec|
|•||Les moyens de comunication / Methods of Communication Matane, Quebec|
|•||Parc Octavia-Roy-Desjardins Park Matane, Quebec|
|•||The Tavern of Juana la Tangos Ciudad de Mexico, Ciudad de México, Mexico|
|•||Luis Rodríguez Alconedo Ciudad de Mexico, Ciudad de México, Mexico|
|•||Avenida Balderas 67 Ciudad de Mexico, Ciudad de México, Mexico|
|•||Coronel Donato Guerra Orozco Ciudad de Mexico, Ciudad de México, Mexico|
|•||José María Morelos y Pavón Imprisoned at La Ciudadela Ciudad de Mexico, Ciudad de México, Mexico|
|•||Richard Overton Healing Garden Austin, Texas|
|•||John Wilkes Booth Bel Alton, Maryland|
|•||Ancre de la goélette Jean Eudes Matane, Quebec|
|•||L'église / The Church Saint-Ulric, Quebec|
|Jan 22 •||Miguel Constanzo's Tobacco Project Ciudad de Mexico, Ciudad de México, Mexico|
|•||and more ...|
Most Viewed Markers This Year
|1 •||General Pasquale Paoli City of Westminster, England, United Kingdom|
|2 •||Pendleton Town Hall Explosion Pendleton, Indiana|
|3 •||First Shipboard Landing San Bruno, California|
|4 •||Confederate Defenders of Charleston Charleston, South Carolina|
|5 •||Crash Site of USA AF A20G Havoc Woodruff, South Carolina|
|6 •||William ("Bill") Goyens Nacogdoches, Texas|
|7 •||Captain Isaac Hall Hitching Post Medford, Massachusetts|
|8 •||Corona, New Mexico Corona, New Mexico|
|9 •||Cherokee Chief Bowles Edom, Texas|
|10 •||156 M.L. King Avenue St. Augustine, Florida|
History Happened HereNational and global events all happened somewhere, and historical markers mark
Markers tell stories and point out facts. There is one at the site the northernmost battle of the U.S. Civil War and another at the southernmost point in the United States (can you guess where?). There is one next to a 17th century Japanese stone lantern symbolizing 20th century peace, and another one less than 20 miles away reminding us of the Nike missile sites that were built the same year the lantern was dedicated. They tell of battles, massacres and hangings; of humanitarians, educators, and a beloved stagecoach horse; of mountains, lakes, rivers, bridges, roads, and other natural and man-made wonders.
There are countless thousands of great stories marked by markers—and some boring ones too. Some markers simply recite facts while others are insightful, obscure, cryptic, patriotic, fascinating, sad, funny, or just downright bizarre. Many of those markers are on these pages, others are waiting for you to discover and add them to this database.
So hit the road and experience history first-hand yourself. History happened nearby.
Suggestions? Problems?We want to hear from you. Send a note to the editors.
Want a daily email of new entries?Google's FeedBurner will send you an email every afternoon listing new entries we've published in the last 24 hours. You can unsubscribe at any time using the link at the bottom of each daily email.
Are You A Collector?Do you collect historical markers? Would you like to start? If you’re a collector, or want to get started,
You can add markers yourself. It's easy! Check marker submission guidelines, then click to get started. Adding photos, links and commentary is just as easy: go the marker's page and click on the links at the top or bottom of the page.
HMdb.org CardsHMdb.org 3½" x 2" cards are now available.
Keep An Eye on Those MarkersEnter your town in the Search by Place search box on the More Search Options (or use the County list) to get a list of markers near where you live and work. Keep an eye out for them when you're out on the road. You would be surprised how many disappear in the course of a year.
To report a missing marker, use the “Correct This Page” link on the marker’s page and scroll down to the “Is Marker Missing?” section. A photo of the stump, hole in the ground, or place where the marker was is necessary for proof. Also, please take a few minutes and inform your local historical society.
Recently Modified Marker Entries
|Today •||The Indentured Servants' Plot Saluda, Virginia|
|Jan 22 •||Texas State Railroad Palestine, Texas|
|•||Swanson Cemetery Palestine, Texas|
|•||Maydelle Maydelle, Texas|
|•||28 Liberty New York, New York|
|•||General Smallwood's Gravesite Marbury, Maryland|
|•||Araby Indian Head, Maryland|
|•||Marshall Hall Marshall Hall, Maryland|
|•||Water Power: Baltimore's Economic Engine Baltimore, Maryland|
|•||Berlin Berlin, New Jersey|
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Middle School History ProjectTeachers! Are you looking for a history project idea that will actively involve your students and their parents? Take a look at this historical marker passport project used by teachers in the Wilson NY School District for 7th and 8th grade students. Download the customizable two-page Microsoft Word document by clicking here.
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Do you have some history that you want to publish on the Internet? HMdb.org can provide hosting space at HistoryArchives.org at no charge. What you want to publish does not have to be related to a historical marker. For more information, contact an editor.