Aside from its use in the Qur'an, "fitna" came to have a primary sense of "'revolt', 'disturbances', 'civil war', but a civil war that breeds schism and in which the believers' purity of faith is in grave danger." This was especially so as it came, in the term First Fitna, to refer to the first major civil war of the Islamic Caliphate, which lasted from 656 to 661. "On account of the struggles that marked Mu'āwiya's advent, the term "fitna" was later applied to any period of disturbances inspired by schools or sects that broke away from the majority of believers." The term thus appears the descriptions of other major conflicts such as the Second Fitna (680–92), the Third Fitna (744–47), the Fourth Fitna (809-827), and the Fitna of al-Andalus (1009–1031).