In 1917, the Russian Revolution overthrew the tsar and contributed to Russia's exit from the war.
Explanation:
The Russian Revolution was a large-scale revolution in the Russian Empire that took place in 1917. In a sense, it was a series of revolutions. These resulted in the disappearance of the Tsarist regime and the establishment of the Soviet Union, the first communist state in the world. At the February revolution in 1917 the tsar was deposed and replaced by the Provisional Government. Then, another revolution, the October Revolution, replaced the Provisional Government by a Bolshevik (Communist) government led by Vladimir Lenin. After this a civil war broke out between "Reds" (Bolsheviks / Communists) and "Whites" (Liberals, Mensheviks, Social Revolutionaries and Russian nobility), which lasted from 1917 to 1923. Eventually the Bolsheviks won. In this way, the revolution paved the way for the Union of Soviet Socialist Republics (USSR).
The most likely reason that the Confederate army burned Richmond was "<span>c. to make sure Union soldiers could not use Confederate resources," since it was clear that Richmond offered a great number of such resources for the taking. </span>
Answer: The term "Pax Romana," which literally means "Roman peace," refers to the time period from 27 B.C.E. to 180 C.E. in the Roman Empire. This 200-year period saw unprecedented peace and economic prosperity throughout the Empire, which spanned from England in the north to Morocco in the south and Iraq in the east.