High Quality Content by WIKIPEDIA articles! Since the nineteenth century, many Muslims had aspired to uniting the Muslim ummah to serve their common political, economic, and social interests. Despite the presence of secularist, nationalist, and socialist ideologies, in modern Muslim states, they have cooperated together to form the Organisation of the Islamic Conference. The formation of the OIC happened in the backdrop of the loss of Muslim holy sites in Jerusalem. The final cause sufficiently compelled leaders of Muslim nations to meet in Rabat to establish the OIC on September 25, 1969.