According to Joshua Goldstein, major wars between powerful states have, since 1495, almost always occurred in the _______ half of the _______ phase of long wave cycles
a. first; upturn
b. second; upturn
c. first; downturn
d. second; downturn
Question 2
During what years were baby boomers born?
a. Between 1925 and 1945
b. Between 1946 and 1964
c. Between 1965 and 1981
d. Between 1980 and 2010