Abd al-Malik
Abd al-Malik was an Umayyad caliph who ruled from 685 to 705 CE. He is known for consolidating the Umayyad dynasty's power and implementing significant administrative reforms. One of his notable achievements was the introduction of a standardized currency, which helped facilitate trade across the vast Islamic empire.
Additionally, Abd al-Malik is recognized for his architectural contributions, including the construction of the Dome of the Rock in Jerusalem. This iconic structure is one of the oldest and most important Islamic monuments, symbolizing the caliph's commitment to promoting Islam and its cultural heritage.