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Alan Turing, codebreaker and mathematician, to be face of Britain's new 50 pound note

Mike Snider
Mark Carney, governor of the Bank of England, speaks in front of the concept design for the new Bank of England fifty pound banknote, featuring mathematician and scientist Alan Turing, during the presentation at the Science and Industry Museum in Manchester, north-west England on July 15, 2019.

Alan Turing, a mathematician and code breaker who deciphered German World War II messages, will appear on Britain's new 50 pound note.

The Bank of England made the announcement Monday that Turing, who died in 1954, would appear on the currency and some of his work would also adorn the note.

The action continues the posthumous accolades for the scientist, who after the war was charged with gross indecency after he acknowledged having a homosexual relationship, which was illegal at the time in Britain. To avoid imprisonment, he chose chemical castration with female hormones. He died two years later from cyanide poisoning in a death ruled a suicide.

Turing received a posthumous apology from the British government in 2009, and a royal pardon in 2013.

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“Alan Turing was an outstanding mathematician whose work has had an enormous impact on how we live today," said Mark Carney, governor of the Bank of England, in revealing the note's concept image Monday. "As the father of computer science and artificial intelligence, as well as war hero, Alan Turing’s contributions were far ranging and path breaking. Turing is a giant on whose shoulders so many now stand.”

In addition to his code-breaking work – which included the development of the Enigma code, chronicled in the 2014 film "The Imitation Game" starring Benedict Cumberbatch –Turing also helped create "the theoretical underpinnings for the modern computer ... (and) set the foundations for work on artificial intelligence by considering the question of whether machines could think," the bank says.

FILE -- This is a Tuesday, June 25, 2002 file picture, showing a four-rotor Enigma machine, right, once used by the crews of German U-boats in World War II to send coded messages, which British World War II code-breaker mathematician Alan Turing, was instrumental in breaking, and which is widely thought to have been a turning point in the war. Homosexuality was illegal in Britain at that time and Alan Turing received medical treatment following his conviction for what was considered indecency, however British Prime Minister Gordon Brown has apologized for the

To help crack Nazi Germany's secret codes in World War II, Turing helped create the “Turing bombe,” a forerunner of modern computers. He also developed the “Turing Test” to measure artificial intelligence.

The photo of Turing, taken in 1951, will appear on the front of the note, which is expected to enter circulation by the end of 2021. The U.K’s highest-denomination note is the last to be redesigned and switched from paper to more secure and durable polymer. The redesigned 10 pound and 20 pound notes feature author Jane Austen and artist J.M.W. Turner.

On the back of the 50 pound note, the design will include Turing's mathematics work, technical drawings, his signature, a ticker tape showing his birthday (June, 23, 1912) in binary code, and a quote of his from 1949: “This is only a foretaste of what is to come, and only the shadow of what is going to be.”

Contributing: The Associated Press

Follow USA TODAY reporter Mike Snider on Twitter: @MikeSnider.

This article originally appeared on USA TODAY: Alan Turing, Enigma code-breaker, to be on new British 50 pound note