Imperialism in the 19th Century

There was a great deal of Imperialism in the 19th century, led by mostly westerners from Europe. Imperialism is the act in which one nation extends its rule over another. Imperialism had a substantial effect on the 19th century throughout the entire world by bringing upon changes to many different countries, for better and for worse, especially to Africa.
Prior to the nineteenth century, westerners did interfere with many of the affairs of nations outside of their boarders, so signs of imperialism are shown many times throughout history. Examples of this would be the European colonies in the Americas and also influence in Asia. Whenever a western country was involved with the economy of an outside country,
There were many reasons for Imperialism, two of which were economical and political. What better way to boost an economy than to open markets in other areas of the world? The colonized nations had abundant supplies of resources that could not be found in Europe, wh...