On December 22
No pivotal events are recorded on exactly December 22 in the Human Saga — here is the surrounding week in history.
This week in history (Dec 19 – Dec 25)
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).
21 December 2015SpaceX lands an orbital rocket booster, opening the reusable-rocket eraScience, technology & invention
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.