OLd map of north america
In the image above we have a map of North America, and the countries that owned the land. The major countries that had control over the land, would be Russia, United Kingdom, Mexico, and the United States. During this period of time, the map would have benefited Mexico and the United Kingdom the most, because of the land that belonged to them at the time. What we know now as Canada would have been owned by the United Kingdom, giving them a huge land mass. And what is now known as the West of the United States, would have belonged to Mexico, which was a rich piece of land. Since then, the United States, took over land that was controlled by Mexico and Russia. And the land that the United Kingdom owned in North America, became the country of Canada. These would be huge losses/gains for some countries and would have lasting effects on the people that lived within those regions.