Sunday, 28 August 1580 View all entries from 1580 ← View the previous entry, on 1580-08-27 → View the next entry, on 1580-08-30 People in this entry JD John Dee HG Humphrey Gilbert My dealing with Sir Humfrey Gilbert for his graunt of discovery. Dee, John. The Private Diary of Dr. John Dee, and the Catalog of His Manuscripts, from the original manuscripts in the Ashmolean Museum at Oxford, and Trinity College Library, Cambridge. Edited by James Halliwell-Phillipps. London, The Camden Society, 1842, page 8.