Last czar (tsar) of Russia was Nicholas II; reigned ended 1917 when he and his family were shot by the Bolsheviks starting the Russian revolution.
The legislation authorized two railroad companies, the Union Pacific and the Central Pacific, to construct the lines.
Mansa Musa, fourteenth century emperor of the Mali Empire, is the medieval African ruler most known to the world outside Africa. His elaborate pilgrimage to the Muslim holy city of Mecca in 1324 introduced him to rulers in the Middle East and in Europe.
The answer is A. Washington D.C. in USA was allied to britain <span />
