The purpose was to transport mail
Marco Polo was the most famous Westerner that traveled on the Silk Road at age of 15
It's because he didn't make any changes in the economic while he's president.
The answer is Jupiter. Galileo discovered Jupiter in 1610 using a telescope which he also discovered had 4 moons. Its discovery was significant in augmenting
Hiram Rhodes Revels. Hope this helps! :P