British Airways can trace its origins back to the birth of civil aviation, the pioneering days following World War I. In the 90 years that have passed since the world's first schedule air service on 25 August 1919, air travel has changed beyond all recognition. Each decade saw new developments and challenges, which shaped the path for the future, Take a look at the different eras of air travel, to see how British Airways became the airline it is today.Many of the photographs and posters from the collection are now available to view in our website galleries. Copies of these photographs and posters are also available to purchase