How did Otto Van Bismarck unify Germany?

Bismarck was now determined to unite the German states into a single empire, with Prussia at its core. He then escalated a quarrel with Austria and its German allies over the administration of these provinces into a war, in which Prussia was the victor. Prussia then annexed further territory in Germany. I hope that I could clarify your question.  

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

answer; empathy;