Foundations of geometry different sets of axioms for Euclidean geometry, any of these can replace the Euclidean parallel postulate. The following partial list indicates some of these theorems that are of historical interest. Absolute geometry is a geometry based on an axiom system consisting of all the axioms giving Euclidean geometry except for the parallel postulate or any of its alternatives. The term was introduced by János Bolyai in 1832. It is sometimes referred to as neutral geometry, as it is neutral with respect to the parallel postulate. In Euclid's "Elements", the first 28 propositions and Proposition I.31 avoid using the parallel postulate,
History of the Patriarchs of Alexandria H. E. Burmester, in Cairo. In 1713 Eusèbe Renaudot published the Latin translation "Historia patriarcharum alexandrinorum jacobitarum". A scholarly Arabic edition was started by Christian Friedrich Seybold (1904). History of the Patriarchs of Alexandria The History of the Patriarchs of Alexandria is a major historical work of the Coptic Orthodox Church of Alexandria. It is written in Arabic, but draws extensively on Greek and Coptic sources. The compilation was based on earlier biographical sources. It was begun by Severus Ibn al-Muqaffaʿ, although one scholar contests its attribution to him. It was continued by others including Michael, bishop of Tinnis (11th