A Zeppelin is a type of airship named after the German Count Ferdinand von Zeppelin who pioneered rigid airship development at the beginning of the 20th century.
Zeppelin's notions were first formulated in 1874 and developed in detail in 1893, patented in Germany in 1895 and in the United States in 1899.
After the outstanding success of the Zeppelin design, the word zeppelin came to be commonly used to refer to all rigid airships. Zeppelins were first flown commercially in 1910 by Deutsche Luftschiffahrts-AG (DELAG), the world's first airline in revenue service.