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The One Big Union (OBU) was a radical labour union formed in Western Canada in 1919. It aimed to empower workers through mass organization along industrial lines. The OBU met fierce opposition from other parts of the labour movement, the federal government, employers and the press. Nevertheless, it helped transform the role of unions in Canada.

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The Winnipeg General Strike of 1919 was the largest strike in Canadian history. Between 15 May and 25 June 1919, more than 30,000 workers left their jobs. Factories, shops, transit and city services shut down. The strike resulted in arrests, injuries and the deaths of two protestors. It did not immediately succeed in empowering workers and improving job conditions. But the strike did help unite the working class in Canada. Some of its participants helped establish what is now the New Democratic Party.

The North-West Rebellion (or North-West Resistance) was a violent, five-month insurgency against the Canadian government, fought mainly by Métis and their First Nations allies in what is now Saskatchewan and Alberta. It was caused by rising fear and insecurity among the Métis and First Nations peoples as well as the white settlers of the rapidly changing West. A series of battles and other outbreaks of violence in 1885 left hundreds of people dead, but the rebels were eventually defeated by federal troops. The result was the permanent enforcement of Canadian law in the West, the subjugation of Plains Indigenous Peoples in Canada, and the conviction and hanging of Louis Riel.

Rebecca (Becky) Buhay, political activist, educator (born 11 February 1896 in London, England; died 16 December 1953 in Toronto, ON).

Annie Buller (married name Guralnick), political activist, union organizer (born 9 December 1895 in Ukraine; died 19 January 1973 in Toronto, ON).

Bella Hall Gauld, labour educator, political activist, pianist (born 31 December 1878 in Lindsay, ON; died 21 August 1961 in Montreal, QC).

Louise McKinney (née Crummy), Alberta MLA 1917–21, women’s rights activist, lay preacher (born 22 September 1868 in Frankville, ON; died 10 July 1931 in Claresholm, AB). Louise McKinney was the first woman elected to a legislature in Canada and in the British Empire. A member of the Woman’s Christian Temperance Union (WCTU) and a devout Methodist, she dedicated her life to good works in the service of others. She is also known as a pioneer suffragist and member of the Famous Five. Her signature appears on the legal petition to recognize women as persons under the Constitution, allowing them to serve in appointed positions, such as in the Senate of Canada (see Persons Case).

The Act of Union was passed by the British Parliament in July 1840. It was proclaimed on 10 February 1841 in Montreal. It created the Province of Canada by uniting the colonies of Canada West (formerly Upper Canada) and Canada East (formerly Lower Canada) into one government. (See also: Act of Union: Timeline; Act of Union: Editorial.)

The Cold War refers to the period between the end of the Second World War and the collapse of the Soviet Union in 1991, during which the world was largely divided into two ideological camps — the United States-led capitalist “West” and the Soviet-dominated communist “East.” Canada aligned with the West, as its government structure, politics, society and popular perspectives matched those in the US, Britain, and other democratic countries. The global US-Soviet struggle took many different forms and touched many areas, but never became “hot” through direct military confrontation between the two main antagonists.

In 1841, Britain united the colonies of Upper and Lower Canada into the Province of Canada. This was in response to the violent rebellions of 1837–38. The Durham Report (1839) laid out the guidelines to create the new colony with the Act of Union in 1840. The Province of Canada was made up of Canada West (formerly Upper Canada) and Canada East (formerly Lower Canada). The two regions were governed jointly until Confederation in 1867. Canada West then became Ontario and Canada East became Quebec.

Confederation refers to the process of federal union in which the British North American colonies of Nova Scotia, New Brunswick and the Province of Canada joined together to form the Dominion of Canada. The term Confederation also stands for 1 July 1867, the date of the creation of the Dominion. (See also: Canada Day.) Before Confederation, British North America also included Newfoundland, Prince Edward Island, British Columbia, and the vast territories of Rupert’s Land (the private domain of the Hudson’s Bay Company) and the North-Western Territory. Beginning in 1864, colonial politicians (now known as the Fathers of Confederation) met and negotiated the terms of Confederation at conferences in Charlottetown, Quebec City and London, England. Their work resulted in the British North America Act, Canada’s Constitution. It was passed by the British Parliament. At its creation in 1867, the Dominion of Canada included four provinces: Nova Scotia, New Brunswick, Quebec and Ontario. Between then and 1999, six more provinces and three territories joined Confederation.

Upper Canada was the predecessor of modern-day Ontario. It was created in 1791 by the division of the old Province of Quebec into Lower Canada in the east and Upper Canada in the west. Upper Canada was a wilderness society settled largely by Loyalists and land-hungry farmers moving north from the United States. Upper Canada endured the War of 1812 with America, William Lyon Mackenzie’s Rebellion of 1837, the colonial rule of the Family Compact and half a century of economic and political growing pains. With the Act of Union in 1841, it was renamed Canada West and merged with Lower Canada (Canada East) into the Province of Canada.

In 1841, Britain united the colonies of Upper and Lower Canada into the Province of Canada. This was in response to the violent rebellions of 1837–38. The Durham Report (1839) laid out the guidelines to create the new colony with the Act of Union in 1840. The Province of Canada was made up of Canada West (formerly Upper Canada) and Canada East (formerly Lower Canada). The two regions were governed jointly until Confederation in 1867. Canada West then became Ontario and Canada East became Quebec.

In 1838, the British politician Lord Durham was sent to British North America to investigate the causes of the rebellions of 1837–38 in the colonies of Upper and Lower Canada. Durham's famous Report on the Affairs of British North America (1839) led to a series of reforms and changes. These included uniting the two Canadas into a single colony, the Province of Canada, in 1841. (See also: Act of Union.) The report also paved the way for responsible government. This was a critical step in the development of Canadian democracy. The report played an important role in the evolution of Canada’s political independence from Britain.

The 1837 rebellion in Upper Canada was a less violent, more limited affair than the uprising earlier that year in Lower Canada. However, its leaders, including William Lyon Mackenzie, were equally serious in their demands. They wanted democratic reform and an end to the rule of a privileged oligarchy. The rebellion itself failed, but its very failure helped pave the way for moderate and careful political change in British North America. This included the union of Upper and Lower Canada into the Province of Canada and the eventual introduction of responsible government.

In 1837 and 1838, insurgents in Upper and Lower Canada led rebellions against the Crown and the political status quo. The revolt in Lower Canada was more serious and violent than the rebellion in Upper Canada. However, both events inspired the pivotal Durham Report. It led to the Act of Union, which merged the two colonies into the Province of Canada. It also resulted in the introduction of responsible government. These were critical events on the road to Canadian nationhood.

In 1837 and 1838, French Canadian militants in Lower Canada took up arms against the British Crown in a pair of insurrections. The twin rebellions killed more than 300 people. They followed years of tensions between the colony’s anglophone minority and the growing, nationalistic aspirations of its francophone majority. The rebels failed in their campaign against British rule. However, their revolt led to political reform, including the unified Province of Canada and the introduction of responsible government. The rebellions also gave French Canadians one of their first nationalist heroes in Louis-Joseph Papineau.

In 1841, Britain united the colonies of Upper and Lower Canada into the Province of Canada. This was in response to the violent rebellions of 1837–38. The Durham Report (1839) recommended the guidelines to create the new colony with the Act of Union. The Province of Canada was made up of Canada West (formerly Upper Canada) and Canada East (formerly Lower Canada). The two regions were governed jointly until the Province was dissolved to make way for Confederation in 1867. Canada West then became Ontario and Canada East became Quebec. The Province of Canada was a 26-year experiment in anglophone-francophone political cooperation. During this time, responsible government came to British North America and expanded trade and commerce brought wealth to the region. Leaders such as Sir John A. Macdonald, Sir George-Étienne Cartier and George Brown emerged and Confederation was born.

The politics of the Province of Canada in the early 1860s were marked by instability and deadlock. The Great Coalition of 1864 proved to be a turning point in Canadian history. It proved remarkably successful in breaking the logjam of central Canadian politics and in helping to create a new country. The coalition united Reformers and Conservatives in the cause of constitutional reform. It paved the way for the Charlottetown Conference and Confederation.