'The great mirror'
Date: Between about 1244 and 1260
Original Language: Latin
The first version of the Speculum maius, completed after 1244, is divided into two parts (bifaria), one on natural phenomena and various kinds of knowledge, the other on human history from its beginnings to 1244, with an appendix on the end of time. Following extensive revision completed in 1260, the Speculum was restructured into three parts (trifaria): naturale, doctr…