On July 1, 1867, the British North America Act united the British Colonies of Upper Canada, Lower Canada, New Brunswick and Nova Scotia into "One Dominion Under The Name Of Canada". These four colonies became Canada's first four provinces. Lower Canada was renamed Quebec and Upper Canada was renamed Ontario.
The July 1 Holiday was known as Dominion Day until October 27, 1982; when an act of parliament established the name Canada Day.
The name "Canada" derives from an Iroquoian word for "Village" Kanata, that French explorers heard used to refer to the area near present-day Quebec City. Today Canada comprises ten provinces and three territories.