Euclid They follow the same logical structure as "Elements", with definitions and proved propositions. Other works are credibly attributed to Euclid, but have been lost. The European Space Agency's (ESA) Euclid spacecraft was named in his honor. Euclid Euclid (; – "Eukleídēs", ; fl. 300 BC), sometimes given the name Euclid of Alexandria to distinguish him from Euclides of Megara, was a Greek mathematician, often referred to as the "founder of geometry" or the "father of geometry". He was active in Alexandria during the reign of Ptolemy I (323–283 BC). His "Elements" is one of the most influential works in the
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