What was the significance of the medina charter?
it marked the formal surrender of constantinople to the ottomans in 1453.
it became the first book in the qur'an.
it inspired pope urban ii to begin the first crusade.
it was the first constitution on the arabian peninsula.

The Medina Charter was the first constitution on the Arabian Peninsula.

Explanation:

The Medina Charter was drawn up by the Islamic prophet Muhammad. It was made up of a formal agreement between Muhammad and all the important tribes and families of Iatrebe (later known as Medina), including Muslims, Jews and pagans. The document was drawn up with the explicit concern of ending the cruel struggle between the tribes of Aus and Khazraj in the interior of Medina. To this end, it instituted a series of rights and responsibilities for the Muslim, Jewish and pagan communities of Medina bringing them into a single community - Ummah.

i believe your answer is d)