Bay'a of Marwan ibn al-Hakam at al-Jabiya

After the death of Mu'awiya II, the Umayyads gathered at al-Jabiya and consulted about who should take charge of the affairs of the Muslims. They agreed on appointing Marwan ibn al-Hakam, and they gave him the oath of allegiance on the third of Dhu al-Qa'da 64 AH. ¹

al-Dahhak ibn Qays had gone out with a group and encamped at Marj Rahit. ¹

The Gregorian date has not been converted. The rest of the details need an additional source.