Final answer:
The loss of Christmas in Jerusalem occurred in 70 CE as a result of a Jewish uprising against Rome, while the loss of Persians to the Byzantines happened between 602 and 628 CE.
Step-by-step explanation:
The loss of Christmas in Jerusalem occurred in the year 70 CE when the Romans permanently destroyed the Temple of Jerusalem. This event was a result of a huge uprising against Rome by the Jews and led to the enslavement or deportation of much of the Jewish population. On the other hand, the loss of Persians to the Byzantines happened between 602 and 628 when the Persians claimed a significant portion of the Byzantine Empire's eastern Mediterranean territories, including Syria, Jordan, Palestine, and Egypt. The conflict ended in 628 with the victory of the Byzantines.