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Canadian History Atlas

Explore places, political boundaries and the records behind them.

159 research drafts, not verified findings. Sources vary in review depth; some were read only as search excerpts. Dates, translations and historical geometry remain incomplete. Missing records do not mean nothing happened.

Political map snapshots

These are generalized, source-derived maps from 1867 onward. They do not reconstruct Indigenous territories, pre-1867 boundaries, exact municipal boundaries, or legal treaty areas.

1867 snapshot. Within-year legal commencement dates are unresolved.

Generalized political map snapshot for 1867
1867 · source-derived political reference

A preceding snapshot is an administrative reference, not a calculated area of territorial gain or loss. Map controls do not filter the event catalogue below.

All 23 dated maps and attribution

Adapted from Natural Resources Canada; includes generalized modern geographic reference. Not an archival photograph or legal boundary determination. Contains information licensed under the Open Government Licence — Canada. Made with Natural Earth. No government endorsement is implied.

NRCan source dataset · Open Government Licence — Canada

Event catalogue

Reset

Present-day regions are navigation aids, not jurisdictions at the event date. “Arctic” groups northern records; it does not place every northern city in the geographic Arctic. Undated records are excluded from year searches.

159 matching research drafts · Page 2

  1. CH-0085 · 1763 · year

    Royal Proclamation of 1763

    The Royal Proclamation set out a British imperial framework concerning colonial governments, Indigenous lands and Crown land-purchase procedures.

    1 source reference · Draft · National, St. Lawrence and Great Lakes, Cross-border

  2. CH-0151 · 1763 · year

    Treaty of Paris and imperial transfer of claims

    The Treaty of Paris of February 10, 1763 preceded Britain’s Royal Proclamation and reorganization of its acquired North American colonies.

    1 source reference · Draft · St. Lawrence and Great Lakes, Atlantic, Cross-border

  3. CH-0034 · 1771 · year

    Moravian mission established at Nain

    Moravians established a permanent mission at Nain, beginning an important phase in Labrador Inuit relationships with missions and trade.

    1 source reference · Draft · Newfoundland and Labrador, Arctic

  4. CH-0097 · 1774 · year

    Québec Act adopted

    The Québec Act changed the colony’s constitutional arrangements, expanded its boundaries and recognized French civil law and Catholic religious practice.

    1 source reference · Draft · St. Lawrence and Great Lakes, Cross-border

  5. CH-0035 · 1781 · year

    Prince Edward Island slavery legislation

    Saint John’s Island passed legislation defining the legal parameters of enslavement, part of a wider history of slavery in British North America.

    1 source reference · Draft · Atlantic

  6. CH-0036 · 1783 · year

    Treaty of Paris and American independence

    The Treaty of Paris recognized American independence and defined boundaries and fisheries provisions affecting British North America.

    1 source reference · Draft · Cross-border, St. Lawrence and Great Lakes, Atlantic

  7. CH-0037 · 1783 · year

    Black Loyalist evacuation register

    The Book of Negroes records approximately three thousand Black people evacuated from New York in 1783 and is a key source for family-level migration research.

    1 source reference · Draft · Atlantic, Cross-border

  8. CH-0038 · 1784 · year

    New Brunswick becomes a separate colony

    Discontent with administration from Halifax contributed to the creation of New Brunswick as a separate colony north of the Bay of Fundy.

    1 source reference · Draft · Atlantic

  9. CH-0153 · 1784 · year

    Cape Breton becomes a separate colony

    Cape Breton Island became a separate colony in 1784, alongside the wider reorganization of Nova Scotia following Loyalist migration.

    1 source reference · Draft · Atlantic

  10. CH-0039 · 1785–1795 · range

    Maritime sea-otter trade at Yuquot

    Yuquot became a central port in the maritime sea-otter trade off Vancouver Island, linking local diplomacy and commerce to overseas traders.

    1 source reference · Draft · Pacific, Cross-border

  11. CH-0040 · 1789–1794 · range

    Nootka Sound controversy

    Yuquot was a focal point of British–Spanish rivalry, trading activity and diplomacy during the Nootka Sound controversy.

    1 source reference · Draft · Pacific, Cross-border

  12. CH-0098 · 1791 · year

    Upper and Lower Canada established

    The Constitutional Act divided the Province of Québec into Upper and Lower Canada and established their constitutional institutions.

    1 source reference · Draft · St. Lawrence and Great Lakes

  13. CH-0041 · 1792 · year

    Black settlers depart for Sierra Leone

    Some 1,196 formerly enslaved settlers left Nova Scotia for Sierra Leone, connecting regional history with the wider Black Atlantic.

    1 source reference · Draft · Atlantic, Cross-border

  14. CH-0101 · 1793 · year

    Mackenzie expedition reaches the Pacific

    The 1793 expedition crossed to the Pacific with Indigenous assistance and established travel knowledge for the fur trade.

    1 source reference · Draft · Prairies, Pacific

  15. CH-0121 · 1793 · year

    York established as a colonial town

    The colonial town of York was established in 1793; its later city incorporation and Toronto name belong to a separate 1834 entry.

    1 source reference · Draft · St. Lawrence and Great Lakes

  16. CH-0156 · 1793 · year

    Upper Canada restricts slavery

    Upper Canada’s 1793 statute prevented further importation of enslaved people and provided future emancipation for children under specified conditions. It did not immediately free people already enslaved.

    1 source reference · Draft · St. Lawrence and Great Lakes

  17. CH-0042 · 1794 · year

    Jay Treaty signed

    The Jay Treaty sought to settle outstanding British–American disputes after independence, including British occupation of northern forts.

    1 source reference · Draft · Cross-border, St. Lawrence and Great Lakes

  18. CH-0139 · 1800–1861 · approximate selected window · approximate_range

    Underground Railroad and freedom-seeking communities

    During the early nineteenth century through the American Civil War, a network assisted freedom seekers travelling from the United States to communities in what is now Ontario.

    1 source reference · Draft · St. Lawrence and Great Lakes, Cross-border

  19. CH-0102 · 1812 · year

    Red River Settlement established

    The Selkirk colony was established in the Red River valley in 1812, within an existing Indigenous and emerging Métis world.

    1 source reference · Draft · Prairies

  20. CH-0043 · 1813 · day

    Battle of Châteauguay

    The October 26 battle formed part of the defence against American invasion during the War of 1812.

    1 source reference · Draft · St. Lawrence and Great Lakes, Cross-border

  21. CH-0044 · 1816 · year

    Battle of Seven Oaks / Frog Plain

    The Battle of Seven Oaks occurred in the Red River region in 1816. Its context in Métis history and competing fur-trade interests requires fuller treatment.

    1 source reference · Draft · Prairies

  22. CH-0155 · 1818 · year

    49th-parallel boundary agreement to the Rocky Mountains

    British and American commissioners established the boundary along the 49th parallel from the Lake of the Woods westward to the Rocky Mountains in 1818.

    1 source reference · Draft · Prairies, Cross-border

  23. CH-0154 · 1820 · year

    Cape Breton returns to Nova Scotia

    Cape Breton ceased to be a separate colony and again formed part of Nova Scotia in 1820.

    1 source reference · Draft · Atlantic

  24. CH-0103 · 1821 · year

    Hudson’s Bay and North West companies amalgamate

    The companies’ amalgamation in 1821 reorganized fur-trade employment and settlement, including at Red River.

    1 source reference · Draft · Prairies, Pacific, Arctic, St. Lawrence and Great Lakes

  25. CH-0045 · 1824–1846 · period

    Hudson’s Bay Company Columbia network

    Fort Vancouver was central to the Hudson’s Bay Company’s Columbia operations before the Oregon boundary settlement.

    1 source reference · Draft · Pacific, Cross-border

  26. CH-0086 · 1831–1996 · range

    Residential school system: institutions and survival

    The NCTR records the Mohawk school opening in 1831 and Gordon’s school operating from 1888 to 1996. These anchors introduce a longer history of institutions, forced assimilation, survival and redress.

    2 source references · Draft · National

  27. CH-0122 · 1834 · year

    Toronto incorporated as a city

    York became the incorporated City of Toronto in 1834. Its municipal footprint differed from today’s Toronto.

    1 source reference · Draft · St. Lawrence and Great Lakes

  28. CH-0157 · 1834 · year

    Slavery abolition takes effect in British North America

    The British Slavery Abolition Act took effect on August 1, 1834, prohibiting African enslavement in British North America and most of the Empire.

    1 source reference · Draft · National, Atlantic, St. Lawrence and Great Lakes

  29. CH-0099 · 1841 · year

    Province of Canada comes into being

    The Act of Union united Upper and Lower Canada as the Province of Canada in 1841.

    1 source reference · Draft · St. Lawrence and Great Lakes

  30. CH-0047 · 1843 · year

    Fort Victoria established

    The Hudson’s Bay Company established Fort Victoria in 1843; it became its principal British depot west of the Rockies after 1846.

    1 source reference · Draft · Pacific

  31. CH-0048 · 1846-06-15 · day

    Oregon Treaty divides the Pacific region

    The June 15 treaty established a boundary along the forty-ninth parallel with Vancouver Island retained on the British side; offshore disputes remained.

    1 source reference · Draft · Pacific, Cross-border

  32. CH-0140 · 1847 · year

    Irish famine migration and the Grosse Île crisis

    Irish famine migration and a typhus epidemic overwhelmed the Grosse Île quarantine station in 1847. Loss of life extended beyond the island to receiving communities.

    1 source reference · Draft · St. Lawrence and Great Lakes

  33. CH-0049 · 1848 · day

    Nova Scotia responsible government

    On February 2 an executive council drawn exclusively from the legislative majority party was formed in Nova Scotia.

    1 source reference · Draft · Atlantic

  34. CH-0050 · 1849 · year

    Colony of Vancouver Island established

    Britain established the Colony of Vancouver Island, preceding the separate mainland colony.

    1 source reference · Draft · Pacific

  35. CH-0124 · 1855 · year

    Bytown becomes the City of Ottawa

    Bytown incorporated as a city under the name Ottawa in 1855.

    1 source reference · Draft · St. Lawrence and Great Lakes

Coverage, sources & uncertainty

This preview preserves 159 draft events, 128 source records and 13 selected movement records. It is a cumulative research base, not a complete history. Each event links to its evidence and research limitations.

Nation-authored Indigenous histories, municipal histories, modern treaties, migration and many social histories need further research. Incorporation dates do not date human occupation. Empty peoples fields do not imply an absence of Indigenous peoples.

Native Land reference territory geometry is not distributed here while commercial licensing is unresolved. Pre-1867 political geometry and exact movement routes are unavailable. French translations are incomplete; missing translations are not generated or presented as reviewed.

Source collection: October 11–12, 2026. This is not a live feed. Corrections require a reviewed catalogue update; original source identifiers and version hashes are retained. Map images are rendered references, not archival photographs.