The last of 17,000 Twitter messages, which together include the entire text of Don Quixote, will be sent tomorrow to mark the 400th anniversary of Cervantes’ death. A 55-year-old retired computer engineer from Barcelona split the novel’s text into Twitter-length chunks, each of 140 characters, and has been posting 28 Tweets every day. The account, @elquijote1605, has over 7,000 followers including acting PM Mariano Rajoy.