During the 13th and 14th centuries, the mongol empire
a) ceased to be a significant factor in the eurasian trading network.
b) found little use in regulating trade between asia and the mediterranean.
c) provided safety and security to the trading network between asia and the mediterranean sea.
d) used intimidation, terror, and brutality to effectively stop trade along most of the silk roads.

During the 13th and 14th centuries, the Mongol empire provided safety and security to the trading network between Asia and the Mediterranean Sea. This place was also called the Silk Roads; also due to the fact what was being transported at the time. 

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.