Answer: Chief Diplomat
Explanation:
The President is the Chief Diplomat of a country which means that the president is the face of the United States to the world. The President is the one that negotiates with the rest of the world and speaks on behalf of the United States to the rest of the world.
In visiting Communist China, President Nixon acted upon his role as the Chief Diplomat and negotiated a new relationship with Communist China. A relationship which before his administration, had been hostile.
Explanation:
Lincoln's position on slavery evolved during the Civil War because he was morally against slavery and politically opposed to any expansion of it. The issue was an extra part of the western areas. On October 16, 1854, his "Peoria Speech" stated that he declared his opposition to slavery, which he repeated in his route to the presidency.
It showed that under the Articles of Confederation weakened the United States of America. It did not allow them to have their own military or a judicial system, to help punish the wrong doers.
The Mongols founded the Yuan dynasty.