The York, Upper Canada reference article from the English Wikipedia on 24-Apr-2004
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York, Upper Canada

York was the original name of Toronto, Ontario. The town was established in 1793 by Governor John Graves Simcoe, who believed that York would be a superior site for the capital of Upper Canada, then at Newark (now Niagara-on-the-Lake). York became the capital of Upper Canada in 1796.