Elizabeth Blackwell is awarded her M.D. by the Geneva Medical College of Geneva, New York, becoming the United States’ first female doctor
The Sicilian revolution of 1848 is finally extinguished.
The new Roman Republic is declared.
Denmark first becomes a constitutional monarchy.
A riot breaks out at the Astor Opera House in New York City after a dispute between actors Edwin Forrest and William Charles Macready.
A fire nearly burns the entire city of St. Louis, Missouri to the ground.
At the Battle of Novara, the Austrians defeat the Piedmontese .