On December 24
No pivotal events are recorded on exactly December 24 in the Human Saga — here is the surrounding week in history.
This week in history (Dec 21 – Dec 27)
On Christmas Day 800, during Mass at St Peter's Basilica in Rome, Pope Leo III crowned the Frankish king Charlemagne 'Emperor of the Romans' (Imperator Romanorum).
On 27 December 537 the emperor Justinian I inaugurated the rebuilt church of Hagia Sophia, the Church of Holy Wisdom, in Constantinople, less than six years after fire had destroyed its predecessor during the Nika riots of 532.
On 26 December 2004 a magnitude 9.1-9.3 megathrust earthquake ruptured the seafloor off the west coast of northern Sumatra, Indonesia, where the India Plate subducts beneath the Burma Plate.
On 21 December 2015, the private American company SpaceX landed the first stage of its Falcon 9 rocket vertically at Cape Canaveral, Florida, after the booster had helped deliver eleven Orbcomm communications satellites to orbit.