First unveiled in March, the Bank of England’s newly-designed £50 note featuring the portrait of Alan Turing enters circulation. Coinciding with what would have been his birthday, the note celebrates the computer pioneer and wartime codebreaker who helped accelerate Allied efforts to read German Naval messages enciphered with the Enigma machine, shortening World War II. The note also promotes diversity, recognising Turing’s appalling treatment by the state for being gay. After being arrested and convicted for gross indecency, he committed suicide in 1954.