The border between the United States and Canada is mainly divided by what is the product of what per

The western route and the middle are latitudes, the east is the Great Lakes region, except for Lake Michigan, which is American, and the shipping center of the remaining four lakes is used as the national border, which are all left over from the British colonial period.

The eastern section is divided by the Great Lakes and the St. Lawrence River, and the western section is divided directly according to latitude, so it is flat. Alaska is divided with Canada according to longitude. It is left over from the British colonial period.

It was a product of the independence of the United States, when Canada was still a British colony.

Since 1783, there have been some small places that have not yet been fully decided.

Latitude British colonial period.

Author:sdw632899880 - Doorman Level 2 12-31 09:52 The western route and the middle are latitudes, and the east is the Great Lakes region, except for Lake Michigan, which is American, and the shipping center of the remaining four lakes is used as the national border, which is left over from the British colonial period.

By: Chelin Kaka - Assistant Level 2 12-31 10:16The eastern section is the Great Lakes region and the St. Lawrence River, and the western section is divided directly according to latitude, so it is flat.

Alaska is divided with Canada according to longitude. It is left over from the British colonial period.

Victim: Dreadnought-class destroyer - Rookie 4th Class 12-31 12:11 It is a product of the United States after independence, when Canada was still a British colony.

Since 1783, there have been some small places that have not yet been fully decided.

By: Veni Vidi - Soldier 12-31 16:14

Latitude. British colonial period.

The dividing line between Canada and the United States is the 49th parallel. Most of the national boundaries are extended by natural features such as mountain ridges, valleys, lakes or rivers, and a small number of national boundary aberrations are artificially divided in straight lines in order to maintain the general direction of the boundary. The shared border between the United States and Canada is the longest in the world, with a total of 8,891 kilometers.

At present, there are more than 200 countries in the world, and most of them have border lines between countries, and most of them are strictly controlled on the borders of the countries, with border guards stationed and set up sentry posts and checkpoints.

On the border between the United States and Canada, there is a department store shared by both countries, and the flags of the United States and Canada are displayed throughout the building to mark its territory.

There is also a Rock Island library on the border between the United States and Canada, and the dividing line between the two countries is just across the library, and the administrator picks up books from readers to the stacks in the United States.

The dividing line between the United States and Canada was formed for historical reasons.

In 1818, the United States and Great Britain signed the Treaty of 1818, which established roughly the 49th parallel as the border between the United States and Canada.

The 1818 Treaty provided for a boundary between the United Kingdom and the United States at 49 degrees north latitude between Minnesota and the Rocky Mountains, while the western part of the Rockies Mountains was a disputed area, known in the United States as rural Oregon and the United Kingdom as the Columbia of the Hudson's Bay Company.

For the British, the Columbia or Columbia District of the Hudson's Bay Company, which also included New Caledonia, the southern part of another region.

Canada was originally inhabited by Indians and Inuit. After the 16th century, English and French colonists invaded successively; It became a British colony in 1763.

In 1931, Canada became a member of the British Commonwealth, and its parliament was given legislative power on an equal footing with the British Parliament, but it still did not have the power to amend the Constitution.

It became a British Dominion in 1867. In 1926 Britain recognized it"Equal status"to gain diplomatic independence. In 1931, it became a member of the British Commonwealth, and its parliament also obtained the same legislative power as the British Parliament, and in 1982, the Queen of England signed the Canadian Constitution Act, and the Canadian Parliament obtained all the powers to make constitutions and amend the constitution.

The dividing line between the United States and Canada was formed for the following reasons:

The United States and Canada were originally British colonies, later"War of Independence"Outbreak in the United States. In 1783, in order to end the War of Independence, the two sides sat down to negotiate and signed the Treaty of Paris in Paris, which included the question of the determination of the border.

In 1794, another one was signed"Treaty of Jay", an International Boundary Commission was established to demarcate the borders with the United States and Canada.

Later, the United States and the British North American colonies (later Canada) all expanded westward, bringing with them new border problems. In 1888, an agreement was signed establishing the 49th parallel of the northern line as the dividing line between the two sides.

The United States and Canada were originally British colonies, but later the United States became independent and fought with Britain, and the so-called "War of Independence" broke out.

In 1783, in order to end the War of Independence, the two sides sat down to negotiate the Treaty of Paris in Paris, which included the determination of the border. Later, in 1794, the Jay Treaty was signed, establishing an International Boundary Commission to demarcate the border between the United States and Canada.

Later, both the United States and the British North American colonies (later Canada) expanded westward, creating new border issues. In 1818, the two sides signed another agreement establishing the 49th parallel of the northern line as the dividing line between the two sides.

Therefore, the current U.S.-Canada border line is not very straight in the east, which is formed by combining the historical status quo and the results of negotiations between the two sides; The western border is a straight line, and that is because both sides have just developed the western region, and there are no problems left over from history, and the 49th parallel of north latitude has been directly determined as the boundary line.

The United States was established after the War of Independence with Britain, when in 1846 the United States and Britain agreed to take the 49th parallel as the national dividing line, and Canada was a British colony at the time of the United States' independence, and later became independent with the permission of the United Kingdom.

Most of the national boundaries are extended by natural features such as mountain ridges, valleys, lakes, and rivers, and a small number of national boundaries are artificially divided in straight lines in order to maintain the general direction of the boundary. For example, the national border between the United States and Canada has led to the emergence of some interesting features that have been divided in two, to name a few below.

Building across borders On the border between the United States and Canada, there is a department store shared by both countries, and the flags of the United States and Canada are displayed throughout the building to mark its territory. When shopping at a vending machine, U.S. currency must be inserted in the U.S., or it will ignore it. Vending machines in Canada also perform the same way.

Cross-Border Libraries There is a Rock Island library on the border between the United States and Canada, and the national border is just across the library, and the administrator picks up books from the stacks in the United States.

Answer: The boundaries between countries in the world are generally demarcated by something in nature. For example:

Mountains, rivers, and more. In ancient times, these were all big obstacles for human beings, which were difficult to overcome, so the two armies confronted each other by the mountains and rivers, and slowly, the national border was determined. This type of border is not very accurate on the map, because there are so many twists and turns.

Field surveys of mountains and rivers are much more accurate than maps. In modern times, many national borders have not been divided according to this law, but are straight, and most of these national boundaries are artificially demarcated. For example, the two countries need to draw a line, but the two sides do not resolve it through war (or for various reasons, the war is inconclusive), but artificially drawn at the negotiating table, so it is a straight line or a broken line.

There are so many political elements in these borders that there is a story behind each border.

Land, one big, one small.

Denmark will become the second, because there is a small ice-covered island between Canada and Denmark, and they signed an agreement to divide the island into two, so Denmark will become the second country to share a border with Canada.

Yes, you show that Denmark is a relatively independent country, and it has also been recognized by many people, and it has also achieved better development.

Most people have the impression that Canada is located in the northern part of North America and Denmark is located in the middle of Europe, and the two countries are separated by the vast Arctic Ocean, and the closest place is more than 3,500 kilometers.

Some people may think that Greenland belongs to Denmark, and Canada and Denmark are much closer. That's right, if you count Greenland, Canada and Greenland are separated by the Nels Strait and Baffin Bay.

Isn't it over if Du Niang copies it once?