Why did they stop using the zeppelin?

Zeppelins fell out of favor primarily due to safety concerns, particularly after high-profile disasters like the Hindenburg disaster in 1937, which resulted in significant loss of life. Additionally, advancements in aviation technology, such as faster and more reliable airplanes, made airships less practical for commercial travel and cargo transport. The combination of these factors, along with the high operational costs and limited speed of zeppelins, led to their decline in use.