1. Math
2. Science
3. Literature
4. Philosophy
To phrase this in a sentence, you could say that the Ancient Greeks made important contributions to future civilization by their contributions to math, science, literature and philosophy.
They needed to have power
Slaves and peasants were dying quickly and vastly caused a high loss of work for the upperclass civilians... the peasants could go on "stike". They were able to demand more turning the system on its head.
the Italian peninsula was a politically fragmented conglomeration of states. This was the case when the United States announced its independence from Great Britain in 1776. When war broke out between Austria and the Revolutionary French Government in 1792, the French invaded the Italian peninsula, consolidated many of the Italian states, and established them as republics. In 1799 the Austrian and Russian armies pushed the French out of the Italian peninsula, which led to the demise of the fledgling republics.
After Napoleon’s rise to power,
When the Treaty of Guadalupe Hidalgo was signed in 1848, the US contained fifteen free and fifteen slave states. Controversy surrounded all of the proposed solutions to the problem of slavery in the territories. Additionally, northerners railed against the legality of slavery in the District of Columbia, and southerners, in turn, complained of northern failure to comply with the Fugitive Slave Law. All of these issues had to be resolved if new states were to enter the Union.