Choo choo! From the Island of Sodor to the Fat Controller, how well do you know Thomas the Tank Engine? Test your Railway Series knowledge now.
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▶ Play this quizThomas's bright blue livery has made him one of the most instantly recognisable children's characters in the world for nearly 80 years.
Thomas bears the number 1 as a blue saddle tank engine — he was actually a latecomer to the Railway Series, first appearing in the second book.
The Island of Sodor is loosely placed in the Irish Sea between Cumbria and the Isle of Man, with its own detailed geography created by Reverend Awdry.
Ringo Starr narrated the original UK series from 1984 to 1986, with his warm Liverpudlian voice becoming inseparable from many viewers' childhood memories.
Reverend Wilbert Awdry was an Anglican clergyman and railway enthusiast who created the stories to entertain his son Christopher during a bout of measles.
Percy the Small Engine is Thomas's closest friend and carries the number 6 — he's known for being cheerful but occasionally getting into mischief.
The TV series first aired on ITV on 4 October 1984, using model trains on detailed miniature sets — a technique that gave the show its distinctive charm.
The first Railway Series book, published in 1945, featured Edward, Gordon, and Henry — Thomas didn't appear until the second book the following year.
Christopher Awdry continued his father's Railway Series from 1983, writing an additional 16 books that expanded the world of Sodor.
In the fictional geography, Sodor sits in the Irish Sea between the Cumbrian coast and the Isle of Man — Awdry created detailed maps and histories for the island.
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