Bridge: A structure carrying a road, path, railroad, or canal across a river, ravine, road, railroad, or other obstacle.
Source: The Oxford Dictionaries Online

Colonisation: Establishment of a group of settlers in a given territory in order to develop it and take advantage of its wealth.
Source: Grand dictionnaire terminologique

Confederation: Confederation is the popular term for the federal union in 1867 of the provinces of Upper and Lower Canada (thereafter Ontario and Quebec), New Brunswick, and Nova Scotia under the name Dominion of Canada. Manitoba joined the dominion in 1870, British Columbia in 1871, Prince Edward Island in 1873, and Newfoundland in 1949. Alberta and Saskatchewan, which had been territories or districts, were created provinces in 1905.
Source: The Canadian Encyclopedia

Dominion: By the mid-1800s, the term Dominion was most commonly used for wholly or virtually self-governing states of the former British Empire (today the Commonwealth of Nations), such as Canada, Australia and New Zealand. Prior to attaining dominion status these states had always been Crown colonies, under direct rule from the UK and/or a self-governing colony, or they have been formed from groups of such colonies. Canada was called a "Dominion" upon the confederation of the colonies of the Province of Canada, Nova Scotia and New Brunswick, in 1867.
Source: Wikipedia

Economy: the wealth and resources of a country or region, especially in terms of the production and consumption of goods and services.
Source: The Oxford dictionaries Online

Immigration: The movement of nationals of one country into another for the purpose of resettlement.
Source: The Canadian Encyclopedia

Industrialisation: The Industrial Revolution was a major technological, socioeconomic and cultural change. During that time, an economy based on manual labour was replaced by one dominated by industry and manufacturing by machinery, using norms and standards that produces uniform, consistent products.
Source: Wikipedia

Railway network: a network of tracks with the trains, organization, and personnel required for its working.
Source: The Oxford Dictionary online

Station: a regular stopping place on a public transportation route, especially one on a railroad line with a platform and often one or more buildings.
Source: The Oxford Dictionaries Online

Surveying: Surveying is the scientific measurement of natural or man-made features of the Earth's surface.
Source: The Canadian Encyclopedia

Trade: the action of buying and selling goods and services.
Source: The Oxford Dictionaries Online

Viaduct: A long bridgelike structure carrying a road or railroad across a valley or other low ground.
Source: The Oxford Dictionaries Online