query: When were the first London double-decker buses introduced?
passage: 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.[2]
passage: Buses in London
Currently, London has 73 electric buses. In June 2018, Sadiq Khan, the mayor of London announced that 68 electric double-decker buses will be added to the London bus fleet.
A revamped London bus has been used to promote the work of British artist Sir Peter Blake. An anthropomorphic Routemaster named "Topper Deckington III" is a fictional character in the Pixar movie "Cars 2".