I don't know about you, but the first subject I usually look up in an encyclopedia or an index is G.K. Chesterton. So when I came across an edition of the Hutchinson Enyclopeda (a single-volume encyclopedia) from 1992, that's exactly what I did, and this is what I found:
Chesterton, G(ilbert) K(eith) 1874-1936. English novelist, essayist and satirical poet, author of a series of novels featuring the naive priest-detective 'Father Brown'. Other novels include The Napoleon of Notting Hill 1904 and The Man Who Knew Too Much 1922.
Born in London, he studied art but quickly turned to journalism. Like Hilaire Belloc, he was initially a Socialist sympathizer and joined the Catholic Church 1922.
How many errors can you spot in those five lines? (Admittedly, one of them is more an infelicity of expresssion than an error.)