Memory of the World
Earliest Islamic (Kufic) inscription
The inscription is the earliest dated Arabic inscription so far located in the world It mentions the date of the death of the second Caliph of Islam Omar bin alKhattab who died on the last night of the month of DulHajj of the year 23 Hegrah and was buried next day on the first day of Muharram of the new year 24 Hegrah corresponding to 644 AD
Saudi Arabia -