The Early Islamic Empire expanded through a variety of methods such as Conquering new land, gifts of stipends should people convert to Islam, and multiple treaties. All of these methods had a different success rate, however some contributed more to the spread of Islam.
One of the most prominent methods was Conquering and expansion through combat. In Document A it states, “In the battle of Yarmuk certain Muslim Women took part and fought violently.” This shows that the women refused to be conquered, that they believe in their cause, and that they will fight for their beliefs. Overall this greatly contributed to the spread of Islam.
Another tricky, yet effective method, was giving stipends of food (gifts) to leaders