Nationalism had many effects in Europe. I'll give you three examples. First, it gave Europeans a feeling up superiority. It caused Germany Italy, and Russia to unify. Finally it led to an alliance system in Europe. <span />
Answer:
a i think would be correct.
Explanation:
because it was ethicly wrong to them and back then slaverey wasnt seen as being an issue all that time ago
The Answer is
B) freed slaves
