stylistic:tone
Accession

After Ali was killed, Mu'awiya left al-Dahhak ibn Qays in charge of Syria and led his army toward Kufa, where Ali's son Hasan had been nominated as his successor. He successfully bribed Ubayd Allah ibn Abbas, the commander of Hasan's vanguard, to desert his post and sent envoys to negotiate with Hasan. In return for a financial settlement, Hasan abdicated and Mu'awiya entered Kufa in July or September 661 and was recognized as caliph. This year is considered by a number of the early Muslim sources as 'the year of unity' and is generally regarded as the start of Mu'awiya's caliphate.

Before and/or after Ali's death, Mu'awiya received oaths of allegiance in one or two formal ceremonies in Jerusalem, the first in late 660 or early 661 and the second in July 661. The 10th-century Jerusalemite geographer al-Maqdisi holds that Mu'awiya had further developed a mosque originally built by Caliph Umar on the Temple Mount, the precursor of the Jami Al-Aqsa, and received his formal oaths of allegiance there. According to the earliest extant source about Mu'awiya's accession in Jerusalem, the near-contemporaneous Maronite Chronicles, composed by an anonymous Syriac author, Mu'awiya received the pledges of the tribal chieftains and then prayed at Golgotha and the Tomb of the Virgin Mary in Gethsemane, both adjacent to the Temple Mount. The Maronite Chronicles also maintain that Mu'awiya "did not wear a crown like other kings in the world".