Red because it is the color of their flag.
Answer:
President George Washington delivers the first "State of the Union Address" on January 8, 1790. Benjamin Franklin dies on April 17, 1790 in Philadelphia, PA. Washington, DC, is established as the capital of the United States, in 1791. The U.S. Post Office Department is established on February 20, 1792.
Explanation:
1. exploitation of foreign regions for natural resources
2. promotion of white superiority
3. the spread of English language in South Asia (although European Imperialism was mentioned in the question and not British)