The Hay Festival programme is out. Details arrived by email on Saturday, which is fortunate as the next letter of the A-Z writing challenge is H. The Hay Literature Festival is more than a book event. It is two weeks of stimulation and reflective entertainment. This year the dates are 26 May to 5 June 2016 We are not going to make the trip to Wales, but that does not stop me looking through the programme and highlighting writers, drooling over books, and soaking up ideas. Here are a few events, just in the history section, that caught my eye. Sinclair McKay and Thomas BriggsBLETCHLEY AND ENIGMAEvent 11 • Friday 27 May 2016, 1pm • Venue:…