1518 CE
A year defined by the spread of the Reformation debate across Germany, the strange dancing plague of Strasbourg, and the Ottoman Empire consolidating its vast new territories.
Geopolitics & Diplomacy
- Martin Luther was summoned to the Diet of Augsburg in October to defend his theses before Cardinal Cajetan, the papal legate, but refused to recant and fled the city.
- The Treaty of London, negotiated by Cardinal Wolsey, established a universal peace agreement among the major European powers, including England, France, Spain, and the Holy Roman Empire.
- Sultan Selim I consolidated Ottoman control over Egypt, Syria, and the Hejaz, organizing the administration of the newly conquered Mamluk territories.
- King Charles I of Spain worked to establish his authority over the Spanish kingdoms, navigating tensions between Castilian and Aragonese nobles and his Flemish court.
- The Portuguese embassy under Tome Pires reached the Ming court, though Chinese officials were wary of the Europeans and negotiations proceeded slowly.
- Cardinal Wolsey's diplomatic triumph at the Treaty of London enhanced his reputation and England's status as a major European mediating power.
Conflict & Security
- Aruj Barbarossa was killed fighting Spanish forces near Tlemcen in Algeria, but his brother Hayreddin Barbarossa continued to build corsair power in North Africa.
- Juan de Grijalva led a Spanish expedition along the Mexican coast, trading with indigenous peoples and receiving reports of a powerful inland empire.
Economy & Finance
- The Ottoman control of Egypt secured the lucrative Red Sea trade route, adding customs revenues from the transit of spices, textiles, and other goods between Asia and Europe.
- The Treaty of London temporarily reduced military expenditures among the signatory powers, allowing resources to be redirected to domestic economic activities.
Technology & Infrastructure
- Raphael was appointed to oversee the construction of Saint Peter's Basilica following Bramante's death.
Science & Discovery
- Juan de Grijalva's expedition explored the coast of Mexico from the Yucatan to Veracruz, bringing back reports of wealthy indigenous civilizations and gold artifacts.
- The Portuguese embassy to China under Tome Pires provided European scholars with new information about Chinese society, governance, and commerce.
- The Royal College of Physicians was established in London by Thomas Linacre, creating a professional body to regulate medical practice in England.
Health & Medicine
- The Dancing Plague of Strasbourg began in July when a woman named Frau Troffea began dancing uncontrollably in the streets, with the phenomenon eventually spreading to hundreds of people.
- Authorities in Strasbourg initially encouraged the dancing by providing music and a stage, believing it was caused by hot blood, before recognizing the severity of the affliction.
- The Royal College of Physicians in London was established to improve the standard of medical practice and regulate the activities of physicians in the city.
Climate & Environment
- Atmospheric carbon dioxide concentration was approximately 273 parts per million, as later confirmed by ice core analysis.
Culture & Society
- Luther's theological challenge to the papacy gained widespread support across the German-speaking lands, with his ideas debated in universities, churches, and public gatherings.
- Raphael produced the portrait of Pope Leo X with Cardinals Giulio de' Medici and Luigi de' Rossi, one of the masterpieces of Renaissance portraiture.
- Titian emerged as a leading painter in Venice, producing works that demonstrated the Venetian school's mastery of color and atmospheric effects.
- The Dancing Plague of Strasbourg captured public attention, generating discussion about its causes and becoming one of the most unusual events of the period.
- The estimated global population was approximately 497 million people, with the largest concentrations in China, the Indian subcontinent, and Europe.