Saint Marinus Founds the World's Oldest Republic

A Christian stonemason fleeing religious persecution on the Dalmatian coast climbed Monte Titano on September 3, 301 AD, and founded a small community of fellow believers that would become the Republic of San Marino, the world's oldest surviving sovereign state. Saint Marinus, a craftsman from the island of Rab in modern-day Croatia, had come to the area to work on the reconstruction of Rimini's city walls and retreated to the mountain to escape the anti-Christian purges of Emperor Diocletian. The tiny settlement he established has maintained continuous self-governance for over 1,700 years. San Marino's survival through centuries of Italian warfare, papal politics, and Napoleonic conquest defied every expectation. The republic is entirely surrounded by Italy, encompasses just 24 square miles, and at no point in its history commanded a military force capable of defending itself against a serious invasion. Its continued existence depended instead on diplomatic skill, geographic isolation atop a defensible mountain, and a remarkable ability to avoid provoking its more powerful neighbors. Napoleon reportedly offered to expand San Marino's territory, but the republic's leaders wisely declined, understanding that a larger state would attract the attention of predators. The republic's political structure, established in its current form in 1263, places executive authority in two Captains Regent who serve simultaneous six-month terms, a system designed to prevent any single individual from accumulating power. The General Council, a 60-member parliament, has functioned continuously since the Middle Ages. Abraham Lincoln exchanged letters with the republic's regents, calling San Marino proof that "government founded on republican principles is capable of being so administered as to be secure." San Marino survived the unification of Italy in the 1860s by maintaining strict neutrality, sheltered over 100,000 refugees during World War II despite its tiny size, and today operates as a prosperous microstate with one of the world's highest per-capita incomes. The mountain refuge of a persecuted stonemason endures as the longest-running experiment in republican self-governance in human history.