| March 10, 1876 | March 10, 1949 |
| • Alexander Graham Bell made what was, in effect, the first telephone call. His assistant, in an adjoining room in Boston, heard Bell over the experimental device say, "Mr. Watson, come here, I want you". | • Mildred E. Gillars, who made wartime broadcasts for the Nazis as "Axis Sally", was convicted in Washington, D.C., of treason. She served 12 years in prison. |
| March 11, 1861 | March 11, 1888 |
| • Delegates from South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana and Texas adopt the Permanent Constitution of the Confederate States of America in Montgomery, Alabama. | • In one of the worst blizzards in U.S. history, New York grinds to a near halt, with elevated trains blocked by snow drifts and unable to move. Up to 15,000 people were stranded on the elevated trains. |
| March 12, 1776 | March 12, 1912 |
| • In Baltimore, a public notice appears in local papers recognizing the sacrifice of women to the cause of the revolution. The boycotts that united the colonies against British taxation were generally of products used mostly by women. The colonists only resorted to an attempted boycott of rum after Britian closed the port of Boston. | • In Savannah, Georgia, Juliette Gordon Low founded the Girl Guides, which later became the Girl Scouts of America. |
| March 13, 1781 | March 13, 1884 |
| • German born English astronomer William Hershel discovers Uranus, the seventh planet from the sun. Hershel's discovery, the first to be made by use of a telescope, allowed him to distinquish Uranus as a planet, not a star. | • Standard time was adopted throughout the United States. |
| March 14, 1794 | March 14, 1884 |
| • Eli Whitney received a patent for his cotton gin, an invention that revolutionized America's cotton industry. | • The Federal Bureau of Investigation institutes the "Ten Most Wanted Fugitives" list in an effort to publicize particularly dangerous fugitives. Only seven women have appeared on the list since its inception. |
| March 15, 44 B.C. | March 15, 1875 |
| • Julius Caesar is murdered by his own senators at a meeting in a hall next to Pompey's Theatre. In a dagger attack, Marcus Brutus wounded Caesar, and Caesar is said to have remarked in Greek, "You, too my child". | • The Roman Catholic archbishop of New York, John McCloskey, was named the first American Cardinal, by Pope Pius IX. |
| March 16, 1926 | March 16, 1978 |
| • American Robert H. Goddard successfully launches the world's first liquid fueled rocket at Auburn, Mass. The 10 foot tall rocket, fueled by liquid oxygen and gasoline, traveled for 2.5 seconds at a speed of about 60 mph and reached an altitude of 41 feet. | • One of the world's worst supertanker disasters takes place when the Amoco Cadiz wrecks off the coast of Portsall, France. Although it later became a more commonplace feature of television news, this was the first time that images of oil coated birds were seen by the world. |
| March 17, 1942 | March 17, 1966 |
| • General Douglas MacArthur arrived in Australia to become supreme commander of Allied forces in the southwest Pacific theater during World War II. | • A U.S. midget submarine located a missing hydrogen bomb, which had fallen from an American bomber into the Mediterranean off Spain. |