The first oath of allegiance in Bayat Aqaba took place in 621 AD or in the 12th year of Prophethood. The second oath of allegiance to Bayat Aqaba took place in 622 AD or in the 13th year of Prophethood. And the third oath of Aqaba in Bayat took place in 623 AD or in the 14th year of Prophethood.