What are the Major fire accidents in world?

Major fire accidents in the world include the Great Fire of London in 1666, which devastated large parts of the city, and the Triangle Shirtwaist Factory fire in New York City in 1911, resulting in the deaths of 146 workers and prompting significant labor reforms. The 1986 Space Shuttle Challenger disaster, although not a traditional fire accident, involved a catastrophic explosion during launch due to a failure in the O-rings, leading to the loss of all seven astronauts on board. More recently, the Grenfell Tower fire in London in 2017 tragically claimed 72 lives, highlighting issues of building safety and fire regulations.