Question

Which event best matches the year 1927?
The tsar was executed.
The New Economic Policy was introduced.
Political parties were banned in the Soviet Union.
Joseph Stalin seized power.

Answer 1

"Joseph Stalin seized power" would be the event that best matches the year 1927, since this was the year when Stalin Trotsky and his political backers from the government and made leaps towards consolidating his political power. 

Answer 2

"Joseph Stalin seized power"