Eboracum recognise that the Multangular Tower was Roman in date in a 1683 paper with the Royal Society. John Horsley's 1732 "Britannia Romana", or 'The Roman Antiquities of Britain', included a chapter on Roman York and at least partly informed Francis Drake's 1736 "Eboracum" – the first book of its kind on Roman York. Drake also published accounts in the "Philosophical Transactions" of the Royal Society. The Rev. Charles Wellbeloved was one of the founders of the Yorkshire Philosophical Society and a curator of the antiquities in the Yorkshire Museum until his death in 1858. He published a systematic account of
Latin delta Latin delta Latin delta (ẟ) is a Latin letter similar in appearance to the Greek lowercase letter delta (δ), but derived from the handwritten Latin lowercase d. It is also known as "script d" or "insular d" and is used in medieval Welsh transcriptions for the sound (English "th" in "this") represented by "dd" in Modern Welsh. A proposal to include several medieval characters in the Universal Character Set included this character with the name LATIN SMALL LETTER SCRIPT D. This was renamed to LATIN SMALL LETTER DELTA and added to Unicode as U+1E9F when Unicode 5.1 was released on