1402 CE
A year defined by Timur's crushing defeat of the Ottoman Sultan Bayezid I at the Battle of Ankara, the seizure of the Ming throne by Zhu Di as the Yongle Emperor, and the continued spread of Owen Glendower's revolt in Wales.
Geopolitics & Diplomacy
- Zhu Di captured Nanjing and seized the Ming throne, proclaiming himself the Yongle Emperor after the Jianwen Emperor disappeared during the fall of the capital.
- The defeat of Sultan Bayezid I by Timur at Ankara threw the Ottoman Empire into a succession crisis known as the Ottoman Interregnum.
- Timur restored several Anatolian beyliks that had been absorbed by the Ottomans, fragmenting Ottoman territorial control in Asia Minor.
- Henry IV of England sought diplomatic support from continental powers while struggling to suppress Owen Glendower's expanding Welsh revolt.
- The Republic of Venice negotiated trading privileges with Timur's empire, seeking to maintain access to eastern trade routes disrupted by the conflict.
- The Mamluk Sultanate of Egypt watched Timur's western advance with alarm, strengthening defenses along the Syrian frontier.
- The Kingdom of Castile under Henry III sent ambassadors to Timur's court, seeking intelligence on the conqueror's intentions and potential alliances.
Conflict & Security
- Timur defeated Ottoman Sultan Bayezid I at the Battle of Ankara on July 20, capturing the sultan and shattering Ottoman military power in Anatolia.
- An estimated 140,000 of Timur's troops clashed with Ottoman forces at Ankara in one of the largest battles of the medieval period.
- Sultan Bayezid I was taken prisoner by Timur after the Battle of Ankara and was held in captivity, where he would die the following year.
- Owen Glendower's forces expanded their control across Wales, raiding English-held territories and defeating royal garrisons in a series of engagements that spread the revolt beyond its initial strongholds.
- The Jingnan campaign in China concluded with Zhu Di's forces storming Nanjing, ending the civil war and overthrowing the Jianwen Emperor.
- Timur's armies sacked the city of Smyrna, held by the Knights Hospitaller, destroying the Christian fortress after a brief siege.
- Bayezid's sons began fighting among themselves for control of the remaining Ottoman territories, plunging the empire into civil war.
Economy & Finance
- The disruption of Ottoman trade networks following the Battle of Ankara created both challenges and opportunities for Venetian and Genoese merchants.
- The new Yongle Emperor began plans to move the Ming capital from Nanjing to Beijing, initiating one of the largest construction projects in history.
- The Venetian Arsenal expanded its shipbuilding capacity, producing war galleys and merchant vessels using an early form of assembly-line production.
- Taxation in England increased as Henry IV sought funds to finance military campaigns in Wales and maintain royal authority across the kingdom.
Technology & Infrastructure
- The Yongle Emperor initiated planning for the reconstruction of Beijing as the new Ming capital, including the design of what would become the Forbidden City.
- Gunpowder artillery was employed by both sides at the Battle of Ankara, reflecting the growing importance of firearms in large-scale warfare.
- The construction of defensive fortifications accelerated across Anatolia as local rulers sought to protect their domains in the aftermath of Ankara.
- Glassmaking in Murano continued to innovate, with Venetian craftsmen developing new techniques for producing clear cristallo glass.
Science & Discovery
- Castilian ambassador Ruy González de Clavijo departed on a diplomatic mission to Timur's court in Samarkand, later producing a detailed account of his journey.
- Jean de Béthencourt continued the Norman conquest of the Canary Islands, establishing European colonial presence in the Atlantic off the African coast.
Health & Medicine
- Military casualties at the Battle of Ankara overwhelmed the medical capabilities of both armies, with thousands of wounded receiving minimal treatment.
- Epidemic disease spread through military camps during the Welsh revolt, affecting both English garrison troops and Welsh insurgents.
- The medical school at the University of Padua attracted students from across Europe, building a reputation for anatomical study and clinical training.
Climate & Environment
- Atmospheric carbon dioxide concentration was approximately 272 parts per million, as later confirmed by ice core analysis.
- The forests of Anatolia suffered damage from the passage of large armies during the Ankara campaign, with troops felling trees for siege works and encampments.
Culture & Society
- The Yongle Emperor's accession marked the beginning of a cultural golden age in Ming China, with imperial patronage of art, literature, and scholarship.
- Timur continued to embellish Samarkand with monumental architecture, importing artisans and craftsmen from conquered territories to beautify the capital.
- Welsh cultural identity strengthened during Owen Glendower's revolt, with the uprising drawing on traditions of Welsh poetry, prophecy, and national pride.
- Islamic calligraphy and manuscript illumination reached new heights of artistic achievement in Timurid courts under Timur's patronage.
- The estimated world population was approximately 352 million.