441—The Samian Revolt: Athens decided to besiege Samos after their revolt in 441. However, Persia decided to take the opportunity to support Samos even though they have signed the Peace of Callias with Athens. Athens would eventually spend 1200 talents to fund the war through the Delian League's treasury. Some scholars believed that Sparta might have aided Samos as well, but decided to pull out, having signed the Thirty-year peace treaty.