daily dose of trivia for all the history buffs out there. So sit back and take a ride to all the fascinating things that happened today! People are trapped in history and history is trapped in people, and hence, every day has been a significant one in the foibles of History. Let’s take a tour of “This Day in History – 13th of May”. 1777 University library at Vienna opens - Advertisement - It was only during the reign of Empress Maria Theresia, on this day in History, that the university library was reopened; its holdings consisted largely of the books from the dissolved Jesuit monasteries. The most valuable books remained at the court library.