Pain is temporary - HISTORY

Corinthian helmet from the Battle of Marathon (490 BC) found with the warriors skull inside.

The battle of Marathon is one of history's most famous military engagements. It is also one of the earliest recorded battles. Their victory over the Persian invaders gave the fledgling Greek city states confidence in their ability to defend themselves and belief in their continued existence. The battle is therefore considered a defining moment in the development of European culture.

In September of 490 BC a Persian armada of 600 ships disgorged an invasion force of approximately 20,000 infantry and cavalry on Greek soil just north of Athens. Their mission was to crush the Greek states in retaliation for their support of their Ionian cousins who had revolted against Persian rule.

Undaunted by the numerical superiority of the invaders, Athens mobilized 10,000 hoplite warriors to defend their territory. The two armies met on the Plain of Marathon twenty-six miles north of Athens. The flat battlefield surrounded by hills and sea was ideal for the Persian cavalry. Surveying the advantage that the terrain and size of their force gave to the Persians, the Greek generals hesitated.

One of the Greek generals - Miltiades - made a passionate plea for boldness and convinced his fellow generals to attack the Persians. Miltiades ordered the Greek hoplites to form a line equal in length to that of the Persians. Then - in an act that his enemy believed to be complete madness - he ordered his Greek warriors to attack the Persian line at a dead run. In the ensuing melee, the middle of the Greek line weakened and gave way, but the flanks were able to engulf and slaughter the trapped Persians. An estimated 6,400 Persians were slaughtered while only 192 Greeks were killed.

References:
http://www.history.com/topics/ancient-history/battle-of-marathon
http://www.eyewitnesstohistory.com/marathon.htm