Marco Polo:
Technical advances: Which improved navigation
Portulan Charts: Were a new maps.
Compass: Instrument that was indicating the north
astrolabe: Instrument that was serving to measure the latitude
Quadrant: Was a navigational instrument
Caravels: was faster and more spacious than its predecessors
Prince Henry the Navigator: A men what organised various expeditions.
Bartolomeu Dias: A men what opening the sea route to the Indian Ocean
Vasco de Gama: A men what reached India
Christopher Columbus: Was a Genoese sailor.
Ferdinand Magallan: The captain in the expedition of 1519
Juan Sebastian Elcano the second captain in the expedition of the 1519
Treaty of Tordesillas: Unexplored were divided between them in the teatry of Tordesillas