The earliest of the Arabic tombstones with dates unearthed in Quanzhou, 1171 CE. The inscription reads, “This is the tomb of Hussayn bin Muhammad al-Khalat. May God show mercy upon him. Died on the 13th of the fourth month of the year 567.” Khalat was at this time the capital of Armenia. From Chen Dasheng, Quanzhou zongjiao shike.
Source: Muslims Heritage