Final answer:
In Europe between 1815 to 1914, major changes included Germany and Italy's unification, the decline of the Ottoman Empire, and geographical changes in Poland. The Ottoman Empire and Austria-Hungary lost the most territory, leading to internal instability, economic challenges, and reduced global influence.
Explanation:
Since the maps mentioned in the question aren't provided, I am assuming general changes in Europe between 1815 and 1914. First, there was the unification of Germany and Italy, which consolidated many small states into two larger ones. Second, there was the decline of the Ottoman Empire, which led to the independence of several Balkan countries. Finally, Poland saw significant geographical changes due to the influence of surrounding major powers such as Russia and Austria.
In terms of states that lost the most land, again without specific maps, it would typically be the Ottoman Empire and Austria-Hungary. These states saw their territories dramatically reduced due to national uprisings and wars.
The effect on these states was largely negative. They faced internal instability, economic hardships, and a decrease in their global influence.
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