The u. s. became a superpower around the turn of the twentieth century. this was because the u. s. was able to create a stepping stone to the commerce of

The U.S. became a superpower around the turn of the twentieth century. This was because the U.S. was able to create a stepping stone to the commerce of the Immigration Restriction League of the 1890s, Chinese Exclusion Act of 1882, as well as anti-Irish sentiments. Hope this helps.

The U.S. became a superpower around the turn of the twentieth century. This was because the U.S. was able to create a stepping stone to the commerce of 

Asia