Original sentence: British Columbia and Ontario have since begun to celebrate "Terry Fox Day" on the second Sunday of September, as that is usually the national date for the Terry Fox Run.In Manitoba, the first Monday in August is celebrated as "Terry Fox Day" in honour of athlete and cancer research activist Terry Fox, who was born in Winnipeg in 1958.The date is also celebrated as several municipal holidays in Ontario, such as Simcoe Day in Toronto, John Galt Day in Guelph, and Colonel By Day in Ottawa.The holiday is celebrated as Heritage Day in Alberta; Natal Day in Nova Scotia, in commemoration of the founding of the Halifax–Dartmouth area; and as Terry Fox Day in Manitoba, in honour of the Manitoba-born athlete
Edited sentence: (British Columbia and Ontario have since begun to celebrate "Terry Fox Day" on the second Sunday of September, as that is usually the national date for the Terry Fox Run.In Manitoba, the first Monday in August is celebrated as "Terry Fox Day" in honour of the nationally-renowned athlete who was born in Winnipeg in 1958.The date also signifies several municipal holidays in Ontario, such as Simcoe Day in Toronto, John Galt Day in Guelph, and Colonel By Day in Ottawa.The holiday is celebrated as Heritage Day in Alberta; Natal Day in Nova Scotia, in commemoration of the founding of the Halifax–Dartmouth area; as Terry Fox Day in Manitoba, in honour of the nationally renowned Manitoba-born athlete