What invention allowed ships to stay stable in the roughest of waters?

How did nationalism motivate italy's unification? the italian people wanted to return to a pre-napoleon ancien régime. the italian people wanted a republic nation free from austrian rule. the italian people wanted to instigate industrialization in italy. the italian people wanted to lead europe into the modern age.

Why had conditions in france deteriorated in 1778 and 1789?

In 1991, which of the following split into 15 independent republics when its communist government lost power? a) china b) belarus c) germany d) soviet union