** Client: Ontario Hydro

** Progressive Conservative Party of Ontario, a conservative political party of the Canadian province of Ontario

** The Record ( Waterloo Region ), a newspaper in Waterloo Region, Ontario

** Six Nations of the Grand River First Nation, includes Seneca people in Southern Ontario

** Seneca, New York, a town in Ontario County

** Regional Municipality of Waterloo in Ontario

** The University of Waterloo is founded in Waterloo, Ontario, Canada.

** The Ultimate Warrior defeats Hulk Hogan to win the WWF Championship in a Title for Title, winner takes all match at WrestleMania VI in front of nearly 68, 000 at the SkyDome in Toronto, Ontario

** California Jam is held at the Ontario Motor Speedway in Ontario, California, attracting 250, 000 fans.

** Canadian John Robarts ends his term of office as the 17th Premier of Ontario.

** California Jam II is held at the Ontario Motor Speedway in Ontario, California, attracting more than 300, 000 fans.

** First case reports in Toronto, Ontario, Canada, of the Great Epizootic of 1872 ( equine influenza, or the " horse flu ") which will substantially disrupt life in North America by mid-December.

** At 5: 50 a. m. a ground fault gives way, causing the mine and part of the town of Worthington to collapse into a large chasm located in Ontario.

** War of 1812 – Battle of Lundy's Lane: Reinforcements arrive near Niagara Falls, Ontario for General Riall's British and Canadian force, and a bloody, all-night battle with Jacob Brown's Americans commences at 1800 hours ; Americans retreat to Fort Erie.

** Canada: The Rideau Canal in eastern Ontario is opened.

** Stratford Shakespeare Festival, a theatre festival in Ontario

** Lieutenant Governor of Ontario

** Lyme, New York, a town in New York along the Lake Ontario shoreline

** Fort St. Joseph ( Ontario ), former British outpost on St. Joseph Island

** Metropolitan Toronto, former regional municipality existing in Ontario prior to the amalgamation of Toronto in 1998

** Mount Pleasant Road, a street in Toronto, Ontario

** Populus balsamifera – Ontario Balsam Poplar ( Northern North America ) (= P. candicans, P. tacamahaca )

** South African Airways Provincial Challenges ( 16 provincial teams and Namibia )

** Provincial Governors of Finland

** Establishment of thr Provincial Legislative Assembly

** Fowler Point Site is a campsite of Shuswap Lake Marine Provincial Park, near Mount Fowler, � British Columbiaa

** Bloomfield Provincial Park

** Ferrocarril Provincial de Santa Fe, an Argentine-French railway company

** 9 battalions of Burgos, Alcala, 1 / Espana, 1 / Loxa, 1 / Seville, Provincial of Cordova, Prov.

** Dalhousie University's Studley Campus buildings include the Science Building, 1913 – 15 ; MacDonald Memorial Library, 1914 – 15 ; Shirreff Hall Women's Residence, 1920 ; Arts Building, 1921 – 22 ; Medical Science Laboratory, 1921 – 22 ; Provincial Archives Building, 1929 ; Gymnasium Building, 1931.

** Mansons Landing Provincial Park

** White River Provincial Park

** Balsam Lake Indian Point Provincial Park, Ontario

** Quetico Provincial Park

** La Verendrye Provincial Park

** Mount Carleton Provincial Park

** Chilliwack Lake Provincial Park, a provincial park located around the lake

** Sturgeon Lake ( Quetico ), a lake of the Hunter Island region of the Quetico Provincial Park, northern Ontario

** Clayoquot Arm Provincial Park

** Clayoquot Plateau Provincial Park

** Mount Fernie Provincial Park, a park on Mount Fernie

** Balsam Lake Provincial Park, on the above lake

** The Provincial Letters

** Provincial Highway No. 9

** Provincial Highway No. 11

** Empress Yin, daughter of Yin Tingxun ( 尹廷勛 ), Provincial Governor of Chuzhou ; posthumously honored as Empress Shude ( 淑德皇后 )