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  Around 500 B.C., the Athenian leader Cleisthenes introduced further reforms. The reforms of Cleisthenes allowed Athenian citizens to participate in a limited democracy.
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  From around 600 until 371 B.C., Sparta had the most powerful army in Greece.
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  In 621 B.C., Draco developed a legal code based on the idea that all Athenians, rich and poor, were equal under the law.
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  In about 650 B.C., the Messenian's, resentful of the Spartans' harsh rule, revolted.
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  Around 725 B.C., Sparta conquered the neighboring region of Messenia and took over the land.
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  More far-reaching democratic reforms were introduced by Solon, who came to power in 594 B.C.
