Historical clue formulations

• Toronto's province: Abbr. — 2025-11-10
• Most-populous Canadian province: Abbr. — 2025-09-24
• Neighbor of New York: Abbr. — 2024-06-20
• Home of the Hockey Hall of Fame: Abbr. — 2024-03-10
• Most populous Canadian prov. — 2022-05-06
• Niagara Falls locale: Abbr. — 2022-01-20
• Toronto's prov. — 2021-11-14
• Toronto's prov. — 2021-04-27
• 8-Down's northern neighbor: Abbr. — 2021-04-15
• It shares a 1,650+ mile border with the U.S.: Abbr. — 2020-12-10
• It's on the St. Lawrence: Abbr. — 2020-02-29
• One side of Niagara Falls: Abbr. — 2019-06-25
• Province between Man. and Que. — 2019-02-19
• Mich. neighbor — 2018-12-05
• Province west of Que. — 2018-01-01
• Toronto's province: Abbr. — 2017-08-21
• Toronto's prov. — 2017-08-07
• Mich. neighbor — 2017-07-23
• Neighbor of N.Y. — 2017-05-26
• Province west of Que. — 2017-03-14
• It borders Hudson Bay: Abbr. — 2016-12-02
• Neighbor of Mich. — 2016-11-08
• London locale: Abbr. — 2016-10-28
• Neighbor of N.Y. — 2016-09-25
• Mich. neighbor — 2016-09-24
• Toronto's prov. — 2015-11-16
• Province opp. Detroit — 2015-09-03
• What's superior to Lake Superior: Abbr. — 2015-05-31
• It's west of James Bay: Abbr. — 2015-01-10
• One side of Niagara Falls: Abbr. — 2014-11-26
• It borders four Great Lakes: Abbr. — 2014-11-05
• Home of Thunder Bay: Abbr. — 2013-12-22
• Prov. bordering Manitoba — 2013-11-12
• Windsor's locale: Abbr. — 2013-08-14
• Mich. neighbor — 2013-01-06
• Home of Sault Ste. Marie: Abbr. — 2012-10-27
• Province on Hudson Bay: Abbr. — 2012-09-04
• Prov. east of Manitoba — 2012-07-17
• Toronto's prov. — 2012-06-12
• Toronto's prov. — 2012-03-06
• Province west of Que. — 2012-03-05
• Province next to Que. — 2011-11-21
• It's west of 12-Down: Abbr. — 2011-10-30
• Neighbor of Que. — 2011-08-21
• It borders Lake Huron: Abbr. — 2011-05-18
• Mich. neighbor — 2011-03-20
• Mich. neighbor — 2010-10-24
• Toronto's prov. — 2010-09-27
• Home of Polar Bear Prov. Park — 2010-09-17
• Que. neighbor — 2010-05-30