They are a Protectrate of Great Britain.
maya
Mayan civilization
Aztecs
Wales.
Yes
Great Lakes
Willamette Valley is located in Oregon, United State of America. It is located on the west coast of North America. It is a great agricultural location with many local crops.
great britain Not exactly. Britain is responsible for the defence and foreign affairs of the Falkland Islands. Apart from that, the islands are self-governing.
Singular. America is a great country (singular) vs. America are a great country (plural - wrong)
in Central and South America.
.The Maya, Inca, and Aztecs built great civilizations in Mexico and in Central and South America between 1,800 and 500 years ago. The first of these was the Maya civilization.