 Islam is based on the unity of all religious philosophies and accepts all of the Abrahamic prophets of Judaism, Christianity and other Abrahamic religions before Muhammad.It is the most widely practiced religion of Southeast Asia, North Africa, Western Asia, and Central Asia, while Muslim-majority countries also exist in parts of South Asia, Sub-Saharan Africa, and Southeast Europe.There are also several Islamic republics, including Iran, Pakistan, Mauritania, and Afghanistan.