A thesis, or dissertation, is a document submitted in support of candidature for an academic degree or professional qualification presenting the author's research and findings. In some contexts, the w
Dutch 18th century doctoral ceremony at Leiden University shown on the frontispiece of a PhD thesis, Netherlands. Disputatio philosophica inauguralis de spatio vacuo (lit. 'Inaugural Philosophical Disputation on Empty Space') by Guilielmus ab Irhoven (Willem van Irhoven) on the authority of the Rector magnificus Johannes Jacobus Vitriarius (Jan Jacob Glazenmaker), 7 July 1721.