The correct answer to this open question is the following.
Trace events in Russia in the early 20th century that shaped the nation for much of the remainder of that century.
These most important events were the following.
The Russian empire declares Martial law in July 1914 due to all the disturbs in the nation.
Europe is on the brink of World War I due to the assassination of archduke Franz Ferdinand and his wife. Austria-Hungary declares war against Serbia.
In the middle of World War I, Russia is living so much turmoil in the country. The Mensheviks start the Russian Revolution in St. Petersburg. in February 1917. The Russian Tsar orders the troops to quelch the rebellion, but soldiers mutiny and condemn the Russian government. Nicholas II, the Tsar of Russia abdicates the crown.
Vladimir Lenin became a prominent figure as the leader of the Bolsheviks.
The Bolsheviks troops took the Winter Palace and assume control of the Provisional Government in October 1917.
On March 3, 1918, Russia leaves World War I. Turmoils continued in the interior of Russia until teh Bolsheviks win the revolution and form the Soviet Union in December 1922.