DELAG, Deutsche Luftschiffahrts-Aktiengesellschaft (German: acronym for "German Airship Transport Corporation") was the world's first airline. It was founded on November 16, 1909 with government assistance, and operated airships manufactured by Zeppelin Corporation. Its headquarters were in Frankfurt. (Note: Americans, such as Rufus Porter and Frederick Marriott, attempted to start airlines in the mid-19th century, focusing on the New York-California route. Those attempts foundered due to such mishaps as the aircraft catching fire and the aircraft being ripped apart by spectators.) The five oldest non-dirigible airlines that still exist are Australia's Qantas, Netherland's KLM, Colombia's Avianca, Czech Republic's Czech Airlines and Mexico's Mexicana. KLM first flew in May 1920 while Qantas (for the Queensland and Northern Territory Aerial Services Limited) was founded in Queensland, Australia in late 1920.