Osiris became the first discovered exoplanet with an atmosphere.
It was found to have a hydrogen-rich atmosphere.
Source
Walt Disney's 'Frozen' was released in American movie theaters.
Pope Anastasius I became the Bishop of Rome, reigning until his death.
The 400th anniversary of the end of the Transatlantic Slave Trade was celebrated with the 'Year of Return' in Ghana.
The Congress of Vienna declared Kraków, Poland, a free republic state, and the Constitution of the Kingdom of Poland was signed.
A ghost ship from North Korea washed up on a beach in Japan with eight skeletons onboard.
