At Marathon, the site of the key battle between Greek and Persian armies, independence and a radical new political form were at stake. Through an overview of the religion, culture, and alliances among city-states, this historical account adds depth and context to the battle that safeguarded the autonomy of Greek life, allowed for the development of a cultural foundation for Western civilization, and protected the young democratic government. Detailing the stories of brutal fighting, Philippides' final run proclaiming news of victory, and the powerful political changes that took shape immediately after, this vivid description provides the details of a pivotal moment in Western history.