Persian Wars

The Messenian's, who were outnumbered, revolted against Sparta. Even though they lost, Sparta started to build their military stronger to be prepared for later fights.
http://www.ancientgreekbattles.net/Pics/68550_battle2L.jpg

Persia tries to conquer the Greek City-States for the land. This action causes the first Persian War.
http://www.sikyon.com/athens/images/persian_wars.jpg

Beginning the first Persian War started because the city-states did not want to become part of Persia, therefore Athens decided to help the city-states keep their independence.
http://broeder10.files.wordpress.com/2011/11/map_greco-persian_wars-en-svg.png

Persia sends 25,000 men to conquer Athens. They landed in Marathon(26.2 miles from Athens) and fought against some Athenians(with phalanx). Outnumbered, Pheldippides ran to Athens to warn about Persian army and died when he arrived giving them time to prepare. In the end, Athens defeated Persia.
http://www.findingdulcinea.com/docroot/dulcinea/fd_images/news/on-this-day/September-October-08/On-this-Day--Athens-Defeats-Persian-Army-at-the-Battle-of-Marathon/news/0/image.jpg

He dies at the end of the first Persian War, but is the cause of the 2nd Persian war. Darius III died because of the heartbreak that a small city-state, like Athens, could defeat a huge empire, like Persia.
http://www.revivaltimes.org/_img/05_07/cyrus_portrait.jpg

Xerxes of Persia rebuilds his military in preparation for the 2nd Persian War.
http://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Xerxes_I.jpg/220px-Xerxes_I.jpg

Persia has rebuilt its army and comes for revenge against Athens because of their previous defeat. Athens wins this war by outsmarting the Persian military.
http://www.usu.edu/markdamen/1320Hist&Civ/slides/02herod/mappersianwars.jpg

7,000 Greeks were able to delay the Persian Empire from attacking Athens. The Spartan Sacrifice was a huge part of this massacre. 300 Spartan soldiers sacrificed themselves to save 900 other men. But in the end, this noble battle was the reason the Greeks won the Persian Wars
http://www.awesomestories.com/images/user/3b94451436.jpg

The league that Athens became head of in which enabled the participating city-states to have protection by Athens. As a result, they would have to pay Athen in order to keep the deal.
http://www.docslide.com/assets/images/small/2012/03/166951-the-delian-league-t1.gif

The prosperous age of Athens in which they rebuilt and restored Athens original beauty with the money from the Delian league.
http://www.mitchellteachers.org/WorldHistory/AncientGreece/Images/AthensGreeceAcropolis.jpg