What contributed to the unification of the Arab tribes?

The unification of the Arab tribes was greatly facilitated by the religion of Islam, this was the most important factor for unification. According to historical sources, the victory of Islam took place in 622, then the prophet Muhammad, who was from the city of Mecca, created a new state that united the Arab tribes. After the death of Muhammad, the country was melted by the Caliphs, who were considered his successors. It was the Caliphs who spread Islam to the West as far as France, east to the walls of ancient China and north to the borders of Russia.