<span>Harry S. Truman was 33</span>
<span>Advanced mathematics was critical to the development of the Mayan calendar. The Maya needed a system of mathematics to record celestial movements over the years, to handle large numbers, and to calculate the solar and lunar year with great precision.</span>
Answer: Because they were property.
Explanation: Slave owners did not let slaves keep their names because they were merely property that was constantly being bought and sold. If you don't have a name then you're seen as an object, people simply didn't feel bad for objects.
It doesn't really matter what the public thinks because people have different views on things so can't take an opinion without analysing the situation based on someone else's opinion.
The main event that ended the Russian monarchy was the February Revolution. It was a spontaneous demonstration against the Tsar's government which turned riotous and spread to many other cities. The Tsar tried to order police and military forces to put down the riots, but they refused to obey him. In fact, many soldiers even joined in the riots.
Tsar Nicholas realized that the only way to end the violence was to abdicate his throne. He signed the abdication papers in March 1917 ending 300 years of the Romanov monarchy. The Provisional Government was instituted to govern the country until a Constituent Assembly could be seated, but the Provisional Government was overthrown in the October Revolution also known as the Bolshevik Revolution. The Bolshevik Revolution is not the revolution which ended the Russian monarchy, because the monarchy had already ended 8 months earlier.
<span>In addition, the Tsar and his family were not killed during the Russian Revolution. They were kiled by the Bolsheviks during the Russian Civil War in July 1918, nine months after the October Revolution had ended.</span>