Aksum conquers Himyar
A Christian king avenges the massacre of Najran's Christians

In 523 the Himyarite king Dhu Nuwas, a convert to Judaism, massacred the Christians of Najran. In response the Aksumite king Kaleb, backed by Byzantium, ferried an army across the Red Sea in 525, defeated Dhu Nuwas and placed Himyar under his own governors.
Wikipedia (Russian) · Wikipedia (English) · 6th century
Meanwhile around the world (±25 years)
Europe
- 507 Battle of Vouillé — 18 years earlier
- c. 529 Benedict founds Monte Cassino — 4 years later
- 536 Volcanic winter of 536 — 11 years later
- 537 Hagia Sophia consecrated — 12 years later
- 541–549 Plague of Justinian — 16 years later
Africa
- c. 500 Austronesian settlement of Madagascar — 25 years earlier
- 533–534 Belisarius destroys the Vandal kingdom — 8 years later
Asia
- c. 538 Buddhism reaches Japan — 13 years later
Americas
- c. 500 Rise of Tiwanaku — 25 years earlier
Alive at the time
- Justinian I (aged 43)
- Aryabhata (aged 49)
- Theodora (aged 25)
- Khosrow I (aged 24)