Sourced history of Toronto, Ontario
From the carrying place to Canada's largest city
Toronto began as the town of York, laid out in 1793 on land that the Mississaugas and their neighbors had used for centuries. This site follows the city from that shoreline to the 21st century, with every claim tied to a named source and a check date.
- 2,794,356residents in the city, 2021 Census
- 1793York is laid out by Simcoe's government
- 1834York becomes the City of Toronto
- 631.1 km²city area, 2021 Census
- 198dated events
- 146street names
- 899people, 1885
- 54mapped places
- 52historic buildings
- 30quiz questions
Start with the big picture
Five ways into the subject, from a single narrative to dated records you can filter and check.
Toronto history overview
From Indigenous villages to the 1998 amalgamation, in one continuous account.
TimelineDated events from 1687
Filter by theme and follow each entry to its source.
PeopleWho shaped the city
Biographies of the men and women behind Toronto's streets and institutions.
PlacesHistoric sites
Fort York, Casa Loma, the Distillery District and more.
NeighborhoodsHow districts grew
From colonial villages to the neighborhoods of today.
AnswersThirty short answers
Quick questions with a link to the sources behind each one.
Toronto in six turning points
Each step links to a longer, sourced article.
- The Toronto Carrying Place linked Lake Ontario with Lake Simcoe, and the Mississaugas of the Credit were party to the Toronto Purchase, a record that is still contested. Treaty 13 revised it in 1805.
- John Graves Simcoe chose the site for a new administrative town and named it York.
- American forces took York on April 27, 1813. The present buildings of Fort York date from 1813 to 1815, and it was designated a national historic site of Canada in 1923.
- York was incorporated as the City of Toronto on March 6. The origin of the name remains disputed, and the earlier names tell their own story.
- The Great Fire of April 19, 1904 devastated central Toronto.
- The Metropolitan Toronto federation of 1953 and the Yonge subway line, opened in 1954, were followed by postwar immigration from Europe and then Asia.
How Toronto began
The north shore of Lake Ontario was Indigenous land long before the town existed. A canoe and portage route known as the Toronto Carrying-Place connected Lake Ontario with Lake Simcoe and Georgian Bay, and the Humber River formed part of it. Colonial records describe the area as the territory of the Mississaugas. In 1787 the British Crown negotiated what is now called the Toronto Purchase with Mississauga leaders. The deed that surfaced afterward was largely blank apart from the signatures, and in June 2010 the Government of Canada agreed to pay 145 million CAD to the Mississaugas of the Credit First Nation to settle their specific claim.
John Graves Simcoe, the first lieutenant governor of Upper Canada, began to lay out the new town in August 1793, according to the Dictionary of Canadian Biography. The town was named York, after Prince Frederick, Duke of York, a son of King George III. When York was incorporated as a city on March 6, 1834, it took the name Toronto, while the county around it kept the name York.
Many readers arrive with a single question, such as a family surname, a street name or a date. The surname search covers 899 biographical sketches from an 1885 book on Toronto and the County of York. The street names page explains where some of the city's street names come from, and the map of historic places shows landmarks by location. Larger buildings are described in the guides to Casa Loma, Union Station and the CN Tower.
Research tools
Free, no sign-up, running in your browser on open data.
Surname search
899 sketches, filterable by place, occupation and birth year.
Map of historic places
Landmarks on a map, with a walking tour builder.
Genealogy checklist
Which records to look for, and where to find them.
Census finder
Which census year covers the person you are tracing.
Population history
Census counts as a chart, with the boundary changes explained.
Toronto quiz
Ten questions built from verified facts.
Recently updated articles
The latest articles that were written or re-checked against their sources.
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How to estimate the yearly cost of York University: tuition per course, supplementary fees, housing, TTC student pass, and OSAP aid.
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Statistics Canada estimates show the Toronto area flat in 2025 and the city down about 9,000, while Durham, York and Halton grew. What the data show.
How the site checks its facts
Quick answers
How many people live in Toronto?
The 2021 Census of Canada counted 2,794,356 people in the City of Toronto and 6,202,225 in the Toronto census metropolitan area. Census figures change every five years, so the census year always matters.
When was Toronto founded?
The colonial government of Upper Canada laid out the town of York in 1793. York was incorporated as the City of Toronto on March 6, 1834.
Where does the name Toronto come from?
The origin is disputed. Natural Resources Canada and the linguist John Steckley support the Mohawk word tkaronto, "where there are trees standing in the water". Older books also offer Huron-Wendat and Wyandot explanations.
Can I reuse the data on this site?
The datasets on the open data page (timeline, historic places, buildings, street names and population) are published under the CC BY 4.0 license. Each article lists its sources.
More answers are on the questions and answers page.