The Czar was the title used for the emperors of Russia from the 16th century until the early 20th century. The term is derived from the Latin word "Caesar," reflecting the rulers' authority and power. Czars ruled with absolute power, often making decisions without consulting others, and were seen as the divine representatives of God on Earth. The last Czar of Russia was Nicholas II, who reigned from 1894 until his abdication in 1917 during the Russian Revolution. His reign saw significant social and political changes, leading to the end of the monarchy and the rise of the Soviet Union. The Czar's legacy remains a significant part of Russian history.