Answer:
Nationalism was a great cause of World War one because of countries being greedy and not negotiating. Nationalism shows you are proud of your country and want it to be the best. A lot of causes all linked back to countries all wanted to be better than each other.
Explanation:
The Mycenaeans controlled the country of Greece, as well as Turkey and the surrounding islands in the Aegean Sea.
To celebrate Thanksgiving? Research on it maybe, im sorry i couldnt help :(
