The Johannes Gutenberg University of Mainz (German: Johannes Gutenberg-Universität Mainz) is a university in Mainz, Rhineland Palatinate, Germany, named after the printer Johannes Gutenberg. With approximately 36,000 students (2010) in about 150 schools and clinics, it is among the ten largest universities in Germany. Starting on 1 January 2005 the university was reorganized into 11 faculties of study.

The first University of Mainz goes back to the Archbishop of Mainz, Prince-elector and Reichserzkanzler Adolf II von Nassau. At the time, establishing a university required papal approval and Adolf II initiated the approval process during his time in office. The university, however, was first opened in 1477 by Adolf's successor to the bishopric, Diether von Isenburg. In 1784 the University was opened up for Protestants and Jews (curator Anselm Franz von Betzel). It fast became one of the largest Catholic universities in Europe with ten chairs in theology alone. In the confusion after the establishment of the Mainz Republic of 1792 and its subsequent recapture by the Prussians, academic activity came to a gradual standstill. In 1798 the university became active again under French governance, and lectures in the department of medicine took place until 1823. Only the faculty of theology continued teaching during the 19th century, albeit as a theological Seminary (since 1877 "College of Philosophy and Theology").

Thomas Metzinger (born 12 March 1958) is a German philosopher. As of 2011^[update] he holds the position of director of the theoretical philosophy group at the department of philosophy at the Johannes Gutenberg University of Mainz and is an Adjunct Fellow at the Frankfurt Institute for Advanced Studies and on the advisory board of the Giordano Bruno Foundation. From 2008 to 2009 he served as a Fellow at the Wissenschaftskolleg zu Berlin.

He has been active since the early 1990s in the promotion of consciousness studies as an academic endeavour. As a co-founder, he has been particularly active in the organization of the Association for the Scientific Study of Consciousness (ASSC), and sat on the board of directors of that organisation from 1995 to 2008. He served as president of the ASSC in 2009/10. Metzinger is director of the MIND group and has been president of the German cognitive science society from 2005 to 2007. In English he has published two edited works, Conscious Experience (1995), and Neural correlates of consciousness: empirical and conceptual issues (2000). The latter book arose out of the second ASSC meeting, for which he acted as local organizer.

Johannes Gensfleisch zur Laden zum Gutenberg ( /joʊˌhɑːnɨs ˈɡuːtənbɜrɡ/ yoh-HAH-nəs GOO-tən-burɡ; c. 1398 – February 3, 1468) was a German blacksmith, goldsmith, printer, and publisher who introduced printing to Europe. His invention of mechanical movable type printing started the Printing Revolution and is widely regarded as the most important event of the modern period. It played a key role in the development of the Renaissance, Reformation, the Age of Enlightenment and the Scientific Revolution and laid the material basis for the modern knowledge-based economy and the spread of learning to the masses.

Gutenberg was the first European to use movable type printing, in around 1439. Among his many contributions to printing are: the invention of a process for mass-producing movable type; the use of oil-based ink; and the use of a wooden printing press similar to the agricultural screw presses of the period. His truly epochal invention was the combination of these elements into a practical system which allowed the mass production of printed books and was economically viable for printers and readers alike. Gutenberg's method for making type is traditionally considered to have included a type metal alloy and a hand mould for casting type.