Answer:
1950 to 1959
Explanation:
a decade is 10 years for us
Answer: D is right. But there are also many other reasons.
Explanation: League of Nations was formed by Allied powers (from the WW I) so consequently it was viewed as "League of Victors". Moreover USA did not join, may other states did not join and later on League of Nations was unable the prevent outbreak of WW II.
Answer:
The victory at Yorktown was among the most significant battles of the American Revolution because it concluded the war and the colonists came out victorious.