Double-decker bus
The first commercial horse-drawn double-decker omnibuses were introduced in England in 1847 by Adams & Co. of Fairfield, Bow, then improved upon by John Greenwood, who introduced a new double-decker in 1852.
Double-decker bus
Until 2013-14, double decker buses were used only by tour operators and for long distance coach services operated by Intercity Coachlines and Manabus. They were not used for public transport on urban routes.