Which of the timelines above accurately shows the order of historical events in europe?
a.
one (1)
b.
two (2)
c.
three (3)
d.
four (4)

The answer is A since WWI started in 1914, WWII started in 1939, the Cold war started in 1947, and the Creation of the European Union was in 1950

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor:

Ithink the answer to that would be b):