Monday, May 7, 2012
May 7, 558 The Hagia Sophia (in Constantinople) collapsed. Justinian I immediately ordered that the dome be rebuilt. 1274 in France, the Second Council of Lyons opened, which addressed the union of the Eastern and Western churches, regulating the election of the Pope and church reform. 1348 Charles University in Prague (Universitas Carolina/Univerzita Karlova) was established as the first university in Central Europe. 1429 English siege of Orleans broken by Joan of Arc.