Many factors contributed to Islam expanding; mainly:
Refer to questions below
Primarily the Quran proved authenticity and divinity in particular the scientific miracles in many Quran verses that its correctness and validity had been proved just recently through the advances in sciences, discoveries, and technologies although Quran was revealed from more than 14 centuries ago.
what two empires continued to spread Islam after the Arab Empire collapsed?
It was long ago Islam was spread.It was at Egypt,Arab...Yemen...it was spread from a religious man..
they spread islam
Arches and domes didn't have much to do with Islam as a religion but it was the "modern" at the time Islam was revealed and continued till today. Also it was passed on around the world to places from Spain and china
Islam spread to libya by other countries
Islam
A struggle or conflict to spread Islam is a Jihad
Islam never spread by war. Refer to question below.
Islam spread north at first and then spread east and west.
Some of the regions where Islam spread include the Arabian Peninsula, North Africa, the Middle East, Persia (modern-day Iran), Central Asia, the Indian Subcontinent, and parts of Southeast Asia.
It was spread in Arabic.
Geography was very helpful to the spread of Islam. Through trade routes between Mecca and Medina, Islam swept the Arabian peninsula in just ten years. In addition, substantial migration of Arab tribes to the peninsula, who were already converts, further helped the religion spread.