The absolute latest date for when Proto-Afroasiatic could have been extant is , after which Egyptian and the Semitic languages are firmly attested.
ðɪ ˈæbsəlˌuːt lˈeɪɾɪst dˈeɪt fɔːɹ wɛn pɹˈoʊɾoʊˌæfɹoʊˌeɪsɪˈæɾɪk kˌʊdɐv bˌɪn ɛkstˈænt ɪz , ˈæftɚ wˌɪtʃ ɪdʒˈɪpʃən ænd ðə sɛmˈɪɾɪk lˈæŋɡwɪdʒᵻz ɑːɹ fˈɜːmli ɐtˈɛstᵻd.