After the march revolution, socialists set up or councils of workers and soldiers

The correct answer is Soviets. Following it, they had the october revolution too and after that they took over the country and communism lasted in it for almost an entire century after, ending sometime after the fall of the soviet empire. The country became communist and was led by numerous leaders over time, most famous of whom being Lenin and Stalin.

The answer is crop yield.

Require the nobles and clergy to pay taxes.