What gas was involved in the Hindenburg disaster?

The gas involved in the Hindenburg disaster was hydrogen. Hydrogen was used as a lifting gas for the Hindenburg due to its light weight and ability to provide lift. However, hydrogen is highly flammable, which was a significant factor in the catastrophic fire that occurred when the airship attempted to land in Lakehurst, New Jersey, in May 1937. The ignition of the hydrogen gas, perhaps due to a spark or static electricity, led to a rapid and destructive fire that resulted in the loss of 36 lives. This incident highlighted the dangers associated with using hydrogen as a lifting gas, leading to a shift in the airship industry towards safer alternatives like helium, which is non-flammable.