According to traditional accounts, the Muslim conquests (Arabic: الغزوات‎, al-Ġazawāt or Arabic: الفتوحات الإسلامية‎, al-Fatūḥāt al-Islāmiyya) also referred to as the Islamic conquests or Arab conquests, began with the Islamic prophet Muhammad. He established a new unified polity in the Arabian Peninsula which under the subsequent Rashidun (The Rightly Guided Caliphs) and Umayyad Caliphates saw a century of rapid expansion of Muslim power.