Teófilo Herrera Suárez Teófilo Herrera Suárez Teófilo Herrera Suárez (born 24 February 1924) is a Mexican mycologist known for his contributions to the Mexican mycological flora and an Emeritus Professor at the National Autonomous University of Mexico (UNAM) where he worked for over 50 years. Herrera is originally from Mexico City. In 1940 he enrolled in the UNAM National High School. In 1942 he decided to study Biology instead of Medicine thanks to the positive influence of his teacher Francisco Villagran. He began as an undergraduate student in the Faculty of Sciences at UNAM and got his degree in 1945. Later on, he
Unam sanctam Unam sanctam On 18 November 1302, Pope Boniface VIII issued the papal bull which historian Brian Tierney calls "...probably the most famous of all the documents on church and state that has down to us from the Middle Ages." The original document is lost, but a version of the text can be found in the registers of Boniface VIII in the Vatican Archives. The Bull lays down dogmatic propositions on the unity of the Catholic Church, the necessity of belonging to it for eternal salvation, the position of the Pope as supreme head of the Church, and the duty thence