This is the art of designing maps.
What is cartography?
This European country was first to aggressively explore the seas in the 1400s.
What is Portugal?
Believing he had landed in the East Indies, Columbus mistakenly referred to the natives there as this.
What are Indians?
The improvement of design of these made them larger, faster and more reliable transportation for explorers.
What are ships?
The first explorers in the 1400s were looking for an alternate route to reach this continent, primarily for purposes of trade.
What is Asia?
These onboard weapons helped fortify the early Portuguese explorers' ships.
What are cannons?
In 1488, this Portuguese explorer became the first to sail around southern Africa but didn't reach Asia.
Who is Bartolomeu Dias?
This device, developed by Greeks and perfected by Arabs, is used to determine latitude at sea.
What is the astrolabe?
Starting his trek in 1497, this Portuguese explorer successfully made it all the way around Africa, through the Indian Ocean and to India.
Who is Vasco da Gama?
The Portuguese designed this sailing ship using both square and triangular sails.
What is the caravel?
These people controlled much of the original trade routes around the Mediterranean Sea, causing other European countries to seek a different way.
Who are the Italians and Muslims (Arabs)?