Why was Bismarck relevant?

One of his targets was the Catholic Church, which he believed had too much influence, particularly in southern Germany. He also worked to prevent the spread of socialism, partly by introducing health insurance and pensions. Abroad, Bismarck aimed to make the German empire the most powerful in Europe.

Explanation:

keeping a cash reserve because cash flow is the the movement of money through a company and if it just sits there, it wont the movement

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).