Why did daniel bernoulli decide to be a mathematician?

The persian empire finally fell to the armies of

The holocaust of world war ii resulted in a) the nazis effectively used propaganda to gain and hold power in germany. b) ethnic regimes carried out mass devastation. c) deporting all european jews to the island of madagascar. d) the systematic mass slaughter of european jews and and others in nazi concentration camps during world war ii.

What is significant about the power that russian federal cities are granted?