The most significant moment in the modern history of the Greek nation comes to life through the lives and actions of 21 leaders of the Revolution. Among the 21 heroes are not only the well-known protagonists of the Struggle but also fighters who, despite their significant contribution, did not receive the corresponding recognition. Small stories illuminate unknown aspects of their lives and give children the opportunity to gain a first comprehensive picture of the Revolution of 1821, from its beginning in the Danubian Principalities to the creation of the Greek state.