I think the answer is innovation. :)
Answer:
The Roman Empire
Explanation:
Middle Ages, the period in European history from the collapse of Roman civilization in the 5th century ce to the period of the Renaissance (variously interpreted as beginning in the 13th, 14th, or 15th century, depending on the region of Europe and other factors).
Answer:
Seriation .
Explanation:
In the third stage of Piaget's theory of Cognitive development i.e., Concrete Operational Stage, Seriation is an important process. The third stage in this theory covers the age of 7-12 years.
Seriation is the ability of a child to sort objects according to its characteristics.
Claire who is 8-years-old is able to sort sticks according to its size by seeing there features or sizes but unable to solve the problem of who is tallest because his concrete mental operation is poor in seriation.
So, the correct answer is "seriation".
Vasco da Gama was a Portuguese sea captain who led the first sea voyage from Europe to India. He revolutionized trade with his new route that went around the Cape of Good Hope at the southern most tip of Africa. Da Gama became a naval captain in 1492 and controlled the ships sailing along Portugal.
http://cs.brown.edu/~eli/vasco/vasco_da_gama/Welcome.html
