1768 – The first edition of the Encyclopaedia Britannica is published.
1790 – The U.S. Congress moves from New York City to Philadelphia, Pennsylvania.
1865 – The Thirteenth Amendment to the United States Constitution is ratified, banning slavery.
1917 – In Canada, a munitions explosion kills more than 1,900 people and destroys part of the City of Halifax, Nova Scotia.
2001 – The Canadian province of Newfoundland is renamed Newfoundland and Labrador.