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
Malaysia has historically seen the use of double-decker buses in mass transit to varying degrees, but were significantly limited in use due operational costs and driving spaces needed for such buses. Early double-decker municipal buses primarily existed in Malaya within the Kuala Lumpur area of Selangor and George Town, Penang between the late 1940s and the early 1960s, when double-deckers were eventually withdrawn in favour of cheaper and more agile single-deck buses.