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
Greek Orthodox Patriarchate of Alexandria and all Africa visited first Uganda, and later Kenya. Spartas, however, also made contact with Fr Nikodemos Sarikas, a missionary priest in Tanganyika, and through him made contact with the Greek Patriarch of Alexandria. In 1946 the African Orthodox groups in Kenya and Uganda were received into the Greek Orthodox Patriarchate of Alexandria. In the 1950s, however, the Orthodox Church in Kenya suffered severe oppression at the hands of the British colonial authorities during the Mau Mau Uprising. Most of the clergy were put in concentration camps, and churches and schools were closed. Only the Cathedral in Nairobi (which had a largely Greek