Answer 1
Islam truthfulness, Quran authenticity, and Islam good morals. The most important factor in spread of Islam is the Islam inherent truthfulness that calls for God worship; the one and only one without any partner, son, father associate, or companion and without any mediator. Refer to question below for more information.
Answer 2
It entirely depends on which region of the world you are discussing. The Spread of Islam that occurred in West Africa, the East Coast of Africa, Indonesia, and islands of the Indian ocean did primarily occur do to Islam's appeal as a moral and upstanding religion. However, in the Middle East, North Africa, Southeastern Europe, and the Indian Subcontinent, Islam as a religion spread when Islamic States conquered or annexed territories from non-Islamic States. (The Ottoman Empire was one of the most militarily advanced powers in the world in 1500.) This is not to say that this conquest resulted in forcible conversions, but the politics in an Islamic State made conversion more desirable for non-Muslims (economic benefits, lifestyle benefits, nobility, etc.). Additionally, people in these empires had greater access to Imams and other Islamic institutions and some were convinced to convert by Islam's appeal as a moral and upstanding religion.
The spread of Islam between 600 and 1200 AD was caused by Muslim armies. These armies often coerced people into converting to Islam.
Islam has spread to all continents of the world , the farthest point is Alaska .
Asia - primarily in the south. North Africa A bit into Europe in Spain with the Moors.
Islam is practiced on all six inhabited continents, but has the largest number of followers on the continents of Asia and Africa.
Islam spread to libya by other countries
The continents are moving when they spread apart
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.
It was spread in Arabic.
The Islamic Empire is in three continents Asia, Africa, and Europe. Islam is spread all over the world (as Christianity) but with different percentage of Muslims to each country total population.
No, China got medicine from the Muslim empire during the golden ages of Islam (800-1200) when the Muslim empire spread to China.
it is spread across 2 continents of Asia and Europe.