What is ad 623?

AD 623 is a year in the Julian calendar that occurred in the 7th century. It was a common year starting on Saturday. Some events that took place in 623 AD include:

• The Battle of Uhud, fought between the Muslims and Meccans in Arabia.
• The Prophet Muhammad married his wife Aisha, who was six years old at the time.
• The Tang dynasty of China defeated the Eastern Turks in a battle.
• The first recorded mention of the city of Istanbul, which was then known as Byzantium.