Final answer:
The Russian Revolution, comprising the February and October Revolutions of 1917, led to the collapse of the Romanov dynasty and the establishment of the Bolshevik regime, fundamentally altering Russia's political, social, and economic landscape.
Step-by-step explanation:
The Russian Revolution marked a pivotal period in history that led to the fall of the Romanov dynasty and the rise of the Bolshevik regime. Influenced by a variety of economic, political, and social factors, including Marxist ideologies and the Russian involvement in World War I, widespread discontent with tsarist rule erupted into revolutions in 1905 and again more significantly in 1917.
Notable figures in the Russian Revolution included Vladimir Lenin and Joseph Stalin, whose quotes and policies were disseminated through propaganda such as Pikalov's poster, which referenced historical struggles and the importance of political theory.