How did Islamic culture spread throughout the Muslims empire?

Answer 1

Answer 1

Mainly by the truthfulness of Islam religion, the correctness and Authenticity of Qur'an, the good Muslim model, and Islam morals.

Answer 2

Within the Islamic Empire, there were a number of conditions which facilitated the conversion of most Imperial Subjects to Islam after centuries of occupation. They worked together as a very strong system of carrots and sticks:

Carrots

1) Support of the Locals: Since the Byzantine Empire and Sassanian Empire were engaged in religious zealotry, it stands to reason that they did not tolerate their religious minorities very well. The Muslims professed to (and did) treat minorities far better than either of these Empires. This led to religious minorities (especially Jews) from within the conquered territories helping Muslims to secure outposts and positions, freeing the Muslims to continue to spread the religion.

2) Citizenship by Conversion: The Islamic Empire was interesting in that being the leader or a person of import in the Empire was not contingent on ethnicity or place of birth as was the case of most prior empires. All a person had to do to gain power and prestige was to convert to Islam. This simple integration mechanism resulted in massive number of Persians, Berbers, and Turks converting to Islam. In fact, the furthest expansions of Islam (Spain, India, West China, South Russia, the Balkans) were all accomplished by non-Arabs (respectively Berbers, Persians/Mughals, Turkmen, Azeris, and Ottomans).

3) Universality: Islam, as a religion, claims salvation for all people in all places, making the religion very attractive, especially to people born into low castes and bad economic positions. (This was especially helpful in India and saw numerous conversions of Sudras and Untouchables to Islam.)

4) Commerce: Islam also spread by means of commerce and education whereby non-Muslims learned of the faith and adopted as their own amidst business dealings with Muslims.

Sticks

1) Repression of the Non-Muslim Monotheists: The Dhimmi, or non-Muslim Monotheist under Muslim occupation was required to pay a number of taxes that were connected with his Dhimmi status. The most famous was the jizya, which was a tax that Dhimmi had to pay for Muslims for the right to not be killed where they stood for not acknowledging Mohammed's Prophecy; it was a form of humiliation. Additional taxes included the kharaj, which was a tax on non-Muslim land-holdings in the Muslim World. The kharaj was so untenable that most Dhimmi were forced to live in the cities where the tax would not be applicable. The above answer is also incorrect as concerns justice. On paper, a Christian or Jew could testify against a Muslim, but in reality, such testimony was not acceptable and the attempt to defame a Muslim would receive retribution. Christians and Jews were not allowed to build new houses of worship, restore old houses of worship, proselytize in any way (this included religious debate or dialogue), or allow wine or pigs to be shown in public.

2) Forcible Conversion of Polytheists: Polytheists were forced to convert to Islam with some rare exceptions (such as the Hindus in India since they were just too numerous and the territory was difficult to traverse). Zoroastrianism was the majority faith in Iran until Islam almost completely extinguished it, both by sword, economic inequality, and brutal repression of Zoroastrian customs (unless they could be Islamicized like Nourouz).

Answer 2

when the prophet died the caliphs traveled around and spread the word