Islam migrants ("Muhajirun"), Muhammad in Medina established his political and religious authority. The Constitution of Medina was formulated, instituting a number of rights and responsibilities for the Muslim, Jewish, Christian and pagan communities of Medina, bringing them within the fold of one community—the Ummah. The Constitution established: All the tribes signed the agreement to defend Medina from all external threats and to live in harmony amongst themselves. Within a few years, two battles took place against the Meccan forces: first, the Battle of Badr in 624 – a Muslim victory, and then a year later, when the Meccans returned to Medina,
Battle of Al-Sannabra Frankish land magnates, who ultimately depended upon rents from cultivators of the soil. Mawdud was unable to make any permanent conquests after his victory. Soon afterward, he was assassinated and Aq-Sunqur Bursuqi took command of the failed attempt against Edessa in 1114. Roger of Salerno routed the last Seljuk invading army at the Battle of Sarmin after a protracted campaign in 1115. Battle of Al-Sannabra In the Battle of Al-Sannabra (1113), a Crusader army led by King Baldwin I of Jerusalem was defeated by a Muslim army sent by the Sultan of the Seljuk Turks and commanded by Mawdud ibn