How was the Mayan empire formed

What were some of the great finds that portuguese sailors discovered after prince henry established his navigational school in 1415? the gold coast and the cape verde islands gold and silver ore china the cape of good hope

Why did trade along the silk road increase after it fell under mongol control? o people stopped using camels the mongols paved the road o it became safer to travel the mongols were better traders next question ask for

The answer because i don’t know it someone