Directory

1417 CE

A year defined by the election of Pope Martin V ending the Western Schism, Henry V's renewed invasion of Normandy, and the beginning of the Hussite crisis that would engulf Central Europe.

Geopolitics & Diplomacy

  • The Council of Constance elected Pope Martin V on November 11, ending the Western Schism that had divided the Catholic Church for nearly forty years.
  • The election of Martin V restored a single, universally recognized pope to the Catholic Church, with Cardinal Oddo Colonna chosen as a compromise candidate acceptable to all factions.
  • Henry V of England launched his second invasion of France in August, landing in Normandy with a large army and systematically conquering Norman towns and castles.
  • Alfonso V of Aragon began his reign in earnest, pursuing ambitions in the western Mediterranean and laying plans for the eventual conquest of Naples.
  • The Kingdom of Scotland continued to seek the release of King James I, who had been captured by the English in 1406 and held in captivity for over a decade.

Conflict & Security

  • Henry V's army systematically besieged and captured Norman strongholds, including the city of Caen, which fell after a fierce siege in September.
  • The Siege of Caen resulted in widespread destruction and civilian casualties, with English troops sacking parts of the city after breaching its defenses.
  • French resistance to the English invasion was weakened by the continuing Armagnac-Burgundian civil war, which prevented a unified military response.
  • Braccio da Montone consolidated his control over central Italy, establishing a de facto independent lordship centered on Perugia and threatening papal authority in the region.

Economy & Finance

  • The election of Pope Martin V created opportunities for the Medici bank, which positioned itself to serve as the principal financial institution for the restored papacy.
  • The English conquest of Normandy disrupted trade patterns in northern France, as merchants and farmers fled the advancing army and commercial activity collapsed in war zones.
  • The agricultural economy of Bohemia was threatened by the growing Hussite crisis, as religious and political instability disrupted farming and trade in Czech lands.

Technology & Infrastructure

  • Brunelleschi's construction of the Florence Cathedral dome continued to advance, with the innovative octagonal double-shell design progressing without the use of traditional wooden centering.
  • Siege technology employed by Henry V in Normandy included large bombards, trebuchets, and mining operations, combining traditional and gunpowder-based methods.

Science & Discovery

  • Poggio Bracciolini continued his search for classical manuscripts in European monasteries, recovering texts that would significantly influence Renaissance humanism and scholarship.
  • Islamic astronomical traditions at Samarkand continued under Ulugh Beg, who was developing plans for a major observatory to advance celestial observation.

Health & Medicine

  • Military disease continued to claim more lives than combat during Henry V's Norman campaign, with dysentery, typhus, and other camp diseases ravaging the English army.

Climate & Environment

  • Atmospheric carbon dioxide concentration was approximately 272 parts per million, as later confirmed by ice core analysis.

Culture & Society

  • The election of Pope Martin V was celebrated across Catholic Europe as the end of a decades-long schism, restoring unity and authority to the institutional Church.
  • The Hussite movement in Bohemia continued to grow, combining religious reform with Czech national sentiment and opposition to German cultural and ecclesiastical dominance.
  • Henry V of England promoted a vision of divinely ordained monarchy, casting his military conquests in France as part of a righteous campaign to claim his legitimate inheritance.
  • The estimated global population stood at approximately 371 million, with population growth continuing across most regions despite periodic epidemics and conflicts.