Answer:
The biggest issues in europe after the war was large debt, broken economy and having to finance reconstruction.
<span>Luther
taught that the practice of indulgences did not remit sin, and this idea was captured ferociously in his famous thesis.The remittance only served to fuel the greed and therefore people did not convert. while the church excommunicated him, his ideas passed the test of time, as later the catholic reformation had to abolish the practice.</span>
Twelve countries were involved in WWI.
<span>Mikhail Gorbachev was the </span>last ruler