A 451 Internet error code? Digital Trends has the details:
"Government-imposed online censorship has become increasingly prevalent over the past few years...When censorship does happen, we need a sign that clearly tells us that that’s the reason for a site’s inaccessibility.
Enter Tim Bray, a software developer at Google who has proposed a solution: a “451? error code that displays anytime you visit a site blocked by the government. The number 451 is in honor of late author Ray Bradbury, whose science fiction classic Fahrenheit 451, first published in 1950, warned of a dystopian world defined by government-imposed censorship (in the form of burning any house that contains books)."