Edwin Smith opens an observatory in 1899 in Gaithersburg to measure the earth’s wobble as part of a six observatory worldwide survey.
A Gaithersburg observatory measures the earth’s wobble. Read More »
Carroll County inaugurates Rural Free Delivery of the mail. Four letter carriers and their horses begin free daily delivery from Westminster in 1896.
Rural Free Delivery begins Read More »
Johns Hopkins Hospital opens in 1889, creating the first modern medical school. Local women donate funds, provided it agrees to admit women. The Hospital accepts African American patients in segregated wards. Many medical firsts follow.
Johns Hopkins Hospital opens Read More »
In 1886 the Pratt Library is the first public library to open for all “without distinction of race or color”. The Pratt inspires the nationwide Carnegie Library system.
Enoch Pratt Free Library opens Read More »
Johns Hopkins University opens its doors in 1876 as the first US institution of higher education based on a German model emphasizing graduate education. It has produced many firsts, notably the sanitation work of Abel Wolman.
Johns Hopkins University opens Read More »
Clara Barton, volunteer, goes to the front at Antietam battlefield in 1862, risking her life to treat the wounded with much success. After the War she founds the American Red Cross and settles in Glen Echo.
Clara Barton volunteers as nurse in the Civil War. Read More »
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.
Battle of Antietam is the single bloodiest day of the Civil War Read More »
Hospital No. 1 in Frederick becomes most innovative hospital in caring for large numbers of wounded during the duration of Civil War, 1861-5.
Hospital No.1 in Frederick sees action every day of the Civil War Read More »
The Poole and Hunt Foundry and Machine Works, opened in 1854, makes construction in the US Capitol possible, specifically the dome and the House and Senate wings. Poole and Hunt becomes an industrial hub with 700 employees on the Jones Falls after the Civil War.
Poole and Hunt Foundry becomes an industrial hub Read More »
Quaker abolitionist Martha Ellicott Tyson knew Benjamin Banneker when she was a child. She publishes the biography in 1854.
Abolitionist Martha Ellicott Tyson publishes first biography of Benjamin Banneker Read More »
We acknowledge the enduring presence of many American Indian tribes who once lived in Maryland and who now, having lost their lands, live in a diaspora. Read more.
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