Sparta attacked Athens by land.
You must note that the war was started by Sparta, and that Sparta had a better army, while Athens had a better navy. Since Sparta initiated the war, they were usually able to choose whether the battles would mostly be on land or in the sea. Sparta acted on them having a better land force, and invaded through land, which led to Sparta's victory.
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The teaching or religion of the Buddah
Explanation:
The main effect of imperialism in our world today is the lack of economic development in formerly colonized nations. For centuries, countries in the developing world were exploited by their imperial overlords. This meant that when independence was finally achieved, nations in the developing world were economically weak and constantly needed to play catch up with developed countries.
The awnser is earthquakes
An important agency of early Reconstruction, assisting freedmen in the South.