In Memoriam 1940–1945: Remembering the Victims of the Second World War at Leiden University The unsung victims who disappeared almost without a trace from the University between 1940 and 1945 Guest author • May 04, 2015
A New Discovery in an Old Astronomy Book One of the annotations reveals awareness for a faster calculation of sines known as the ‘Ingenious Way’ (Artificium). Guest author • April 07, 2015
Blaeu’s Italian Promise The most beautiful, but also least known of Joan Blaeu’s works. Guest author • March 10, 2015
Route Map for an Imperial Inspection Tour to South China, 1784 No second copies of these maps are known to exist. Guest author • October 24, 2014
The world’s oldest share certificates The world's oldest share dated 27 August 1604 at Leiden University Libraries Guest author • June 19, 2014
An Englishman in Holland Recollections of a few days spent in Holland in 1826. Guest author • June 03, 2014
An Embossed Map of Vienna by Georg Bauerkeller A very special technique of embossing in mapmaking. Guest author • March 01, 2014
The 1610 Engravings of Leiden University: Botanical Garden The engraving of the Botanical Garden is one in a series of four, the other three depicting the Anatomical Theatre, the University Library and the Fencing School. Guest author • January 23, 2014
