May 10 – A deputy is appointed to take charge of Geoffrey Chaucer’s duties at customs, Chaucer being busy with diplomatic business. Chaucer makes two trips to France in the course of this year.[1]
^Rossignol, Rosalyn (2006). Critical Companion to Chaucer: A literary Reference to His Life and Work. New York, NY: Facts on File. p. 612. ISBN0-8160-6193-9.
^Grant, Edward (2002). "Nicole Oresme". In Curren, Randall (ed.). A Companion to the Philosophy of Education. Blackwell Publishing. ISBN0-631-21672-3.
^Bediuzzaman Said Nursi (2008). The Reasonings: A Key to Understanding the Qu'ran's Eloquence. Somerset, NJ: Tughra Books. p. 50. ISBN978-1-59784-129-0.