Americans need elbow room because it's better to be cozy then not cozy
        
             
        
        
        
The answer is Asia. 
Explanation:
40 degrees North and 100 degrees East is the coordinates of the continent Asia. The other person who answered is incorrect because China is not a continent.
        
             
        
        
        
Answer:
Because according to Alfred Russel Wallace, the martian surface was cold, and the atmospheric pressure was too low to allow liquid water. All these features made it impossible for the existence of intelligent life, and consequently, the canals advocated by Percival Lowell.
Explanation:
The idea of intelligent life on Mars was a profitable argument in the late 19th century. Because of the lack of technology and the impossibility to see the martian surface with precise tools, many speculations about the Red Planet's surface were popular. In 1877 astronomer Giovanni Schiaparelli said that Mars was covered by canals (canali), an argument resulted from his observation during a closer transit of Mars from Earth. The idea, however, would be popularized by Percival Lowell and his book "Mars", originally published in 1895. According to Lowell, the martian canals were resulted by modern engineering, performed by superior intellectual beings. However, the idea, even if it's creative and spread for several other media, especially novels, it was subsequently dismissed by scientists.
 
        
             
        
        
        
The two main railroad companies meet at Promotory Point in 1869 completing the first ever Transcontinental Railroad, they were the Central Pacific-Union Pacific out of Sacramento, California and the Union Pacific-Central Pacific out of Omaha, Nebraska.