In the 11th century, brought islam to india

Which is the main inference that can be drawn from adam smith's book the wealth of nations? a) for an economy to work flawlessly, it shouldn't have to serve and moral goals. b) the government must control a free-market economy, or economic problems will arise. c) a free-market economy works well only without the government's interference. d) free trade will only hurt economies and should be stopped by governments.

How did the actions of tsar nicholas 2 and his wife lead to revolution in russia

What change took place in the african slave trade in the 1500's?