Answer:
Italy's Unification was completed in 1870 and the factors were.
1.) The leadership of Camilo Cavour and Giuseppe Garibaldi
2.) The help of foreign powers.
3.) Italian leadership and foreign help.
The months of July and August
The flooding was important because it brought fertile soils down the Nile valley which helped boost agriculture.
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Yes, just like in every other century since the invention of employment.