If you don't know who Alan Turing was, then shame on you. The British code breaker, mathematics genius and father of both computer science and artificial intelligence is rightly credited with helping to bring the second world war to an end. Turing was also gay, and that's where the shame has stuck firmly on the UK establishment for more than 60 years. Turing was convicted for 'homosexual activity' in 1952, and his punishment was to be chemically castrated.

This shameful and appaling conviction meant that Turing was unable to continue his pioneering code-breaking work at Bletchley Park as he lost his security clearance. He also lost his life, committing suicide just two years later. Now, some 59 years after his death, Alan Turing has finally been given a pardon by Queen Elizabeth II under the 'Royal Prerogative of Mercy'.

Turing is widely credited with shortening the second world war by at least two years thanks to his work that helped crack the German Enigma codes at Bletchley Park. He went on, after the war, to work for the UK Government Communications Headquarters (GCHQ) until his security clearance was revoked thanks to that conviction. He died as a result of suicide poisoning, assumed a suicide at the age of just 41 although some gay rights campaigners have today called for a full investigation into the possibility that he was murdered by British intelligence forces as he was perversely considered a threat to national security because of a combination of his knowledge and sexual orientation.

About the Author

A freelance technology journalist for 30 years, I have been a Contributing Editor at PC Pro (one of the best selling computer magazines in the UK) for most of them. As well as currently contributing to Forbes.com, The Times and Sunday Times via Raconteur Special Reports, SC Magazine UK, Digital Health, IT Pro and Infosecurity Magazine, I am also something of a prolific author. My last book, Being Virtual: Who You Really are Online, which was published in 2008 as part of the Science Museum TechKnow Series by John Wiley & Sons. I am also the only three times winner (2006, 2008, 2010) of the BT Information Security Journalist of the Year title, and was humbled to be presented with the ‘Enigma Award’ for a ‘lifetime contribution to information security journalism’ in 2011 despite my life being far from over...

does 'homosexual activity' still prohibited in UK ?
i think being a gay isn't a crime . That's my personal opinion.

No, homosexual activity is not still prohibited by law in the UK... Was that really a serious question, by the way?

Was that really a serious question

i read about homosexual relationship and found that still there are some countries which are against of it. that's why i asked for UK.

you can read articles about homosexuality in india.
just google it.

Sadly true, there are still countries where sexuality can be a crime. I just assumed most people realised that the UK was no longer on that list of shame...

ddanbe 2,720

It was probably due to his conviction he finally killed himself.
I sometimes wonder with what mathematical marvels he would have come up with, if he could have lived longer.
I read "The annotated Turing" by Charles Petzold, telling some history and explaining his famous paper on computability. With some explanations by Petzold this paper is still hard to follow for non mathematicians like me, but nevertheless, it was an enjoyable read.

Agreed, I was pondering just what he may have achieved if he had lived a full life. Computing may not have been different, but I suspect we may have got where we are a lot quicker.

While I think gays are missing out (tho' the other option is always a challenge), their personal choices are theirs alone. I admire this man for what he did professionally (nice Wikipedia link). Shame on England for taking so long to correct the grave injustice they were responsible for. Thanks for sharing!!!

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It's a pity we don't hold this guy as a national treasure.

He's one of the fundamental creators of modern computing, and yet we can't even seem to properly fund the museum that was created in memorial of him.

Interesting article. Anyone who loves programming will appreciate this guy's work and the term 'turing complete' comes from this guy.

Reading about how those Enigma machines used to work to roll out/crack codes was fascinating.

In regards, to his sexuality... Yeah, pretty much in everyday life we don't pay much attention or concern to such matters. Mostly, it is talked about with disgust or perversion and with a sense of ridicule. There is still apparently some debate as to whether it is nature or nurture -(I don't want to open up a flame war thread). However, if you know anyone who is gay/lesbian (friend/family) you will know who they are is certainly no choice or trivial matter.

Luckily, I'll never have to endure such hostility as a straight man. But I do feel sorry for them.

And for those who are open to looking at things from their POV to help understand their plight try checking out the following youtube vid. Puts things in perspective.


If you get the chance, a very detailed an interesting book by Jack Copeland is "Colossus: The Secrets Of Bletchley Park's Code-Breaking Computers"

Turing was a great man, and who knows what he would have accomplished with more time.

That said, even today people who don't have the politically correct sexual orientation are considered security risks. The problem is that there is still a stigma attached to homosexuality. This makes homosexuals more vulnerable to various kinds of blackmail.

Today we see more and more big names coming out of the closet, and some are quite proud of it. And well should be. But they are the tip of the iceberg. There are still a lot of people who would rather pay, or even die rather than have their secret come out.

I don't think the general public will ever know all of the details of espionage and counter-espionage agencies' activities during the cold war, but I would be willing to bet that homosexuals were considered easy targets. Possibly because of the way that the Turing travesty turned out.

I've been studying computing theory and so I've learned about Turing's work recently. Turing machines are one of the most fascinating things to exist in the world of computer science... Turing contributed some really amazing things, it's a shame things happened like they did. But at the same time, we have to move on and instead of wondering what more he could have done, we have to set out to do so ourselves. That being said, good on them for finally pardoning him for a crime that, IMO, shouldn't have been a crime in the first place.

the guy fucked up big time

I think that Turing was agreat man. It doesnt matter his beliefs. He did a ton for computer science and for bringing WWII to an end. Bravo to Turing. He should have never been questioned.

There are some schools of thought that the death of Turing may have been accidental rather than the suicide cause that was returned by the inquest at the time.
Supported by colleague that stated he was in good spirits, and with a lot of planned projects.
Although it still remains a sad end to a life that had so much potential

Someone also said it was a muder other than suicide. Anyway he is a great people in history.