The Great Fire of London occurred in the year 1666. This catastrophic fire began on September 2 and lasted for four days, devastating a large portion of London, including St. Paul's Cathedral. Sparked by a small fire in a bakery on Pudding Lane, winds quickly spread the flames through the city's wooden structures. An estimated 13,200 houses were destroyed, along with numerous businesses and churches. The fire led to significant changes in building regulations and urban planning in London. Following the disaster, the city began to rebuild with fire-resistant materials, ultimately laying the groundwork for modern architecture in the capital.