Sari Nusseibeh is a Palestinian professor of philosophy and former president of the Al-Quds University in Jerusalem. Until December 2002, he was the representative of the Palestinian National Authority in that city. In 2008, in an open online poll, Nusseibeh was voted the 24th most influential intellectual in the world on the list of Top 100 Public Intellectuals by Prospect Magazine (UK) and Foreign Policy.

'Ubadah ibn al-Samit was a companion of Muhammad and a well-respected chieftain of the Ansar tribes confederation. He participated in almost every battle during Muhammad's era. His official title, according to Muslim scholarly tradition, was 'Ubadah bin Saamit al-Ansari al-Badri for his actions at the Battle of Badr. He served under the first three Rashidun caliphs in the Muslim conquest against the Byzantines.