The baptism of Princess Olga
The first Christian on the throne of Kiev

Olga, ruler of Kiev, visited Constantinople, where Emperor Constantine VII received her with honours and, according to the chronicle, she was baptised. Her son Sviatoslav remained pagan, but three decades later her grandson Vladimir baptised all of Rus'.
Wikipedia (Russian) · Wikipedia (English) · 10th century
Meanwhile around the world (±25 years)
Europe
- c. 939 Eldgjá eruption — 18 years earlier
- 962 Coronation of Otto I — 5 years later
Africa
- 969 Founding of Cairo — 12 years later
- 972 Al-Azhar Mosque opens — 15 years later
Asia
- 946 Millennium Eruption of Mount Paektu — 11 years earlier
- 960 Founding of the Song dynasty — 3 years later
Americas
- c. 950–1250 Medieval Warm Period — 7 years earlier
Alive at the time
- Otto the Great (aged 45)
- Olga of Kiev (aged 37)
- Ferdowsi (aged 17)
- Hugh Capet (aged 17)
- Sviatoslav I (aged 15)
- Edgar the Peaceful (aged 14)
- Otto II (aged 2)
- Yaropolk I (aged 2)