History Illustration. pic: circa 1550. This illustration is entitled The People Of Kazan submitting to Ivan. Ivan the Terrible as he was known (1530-1584) was the first ruler of Russia to assume the title of Tsar. [Getty Images]

History Illustration, pic: circa 1550, This illustration is entitled The People Of Kazan submitting to Ivan, Ivan the Terrible as he was known (1530-1584) was the first ruler of Russia to assume the title of Tsar (Photo by Bob Thomas/Popperfoto via Getty Images/Getty Images) — see more

History Illustration, pic: circa 1550, This illustration is entitled The People Of Kazan submitting to Ivan, Ivan the Terrible as he was known (1530-1584) was the first ruler of Russia to assume the title of Tsar (Photo by Bob Thomas/Popperfoto via Getty Images/Getty Images)