because Muhammads was messenger of god and he could get any success.
HAZRAT MUHAMMAD {p.b.h} followers are called Muslim. See related question below for more information.
Establishment of democratic government
Buddhism was successful due to its adaptable teachings that resonated with diverse cultures and societies, promoting concepts such as compassion, mindfulness, and the pursuit of enlightenment. Its emphasis on personal experience and introspection allowed followers to find practical meaning and relevance in their lives. Additionally, the support of influential rulers and the establishment of monastic communities helped spread its philosophy across Asia, making it accessible to a wide audience.
The teachings of the Enlightenment provided the basis for modern ideas about individual rights, freedom of expression, and the separation of church and state. These ideas have influenced the development of democratic societies and the promotion of reason, tolerance, and progress.
Paul of tarsus :)
Answer: Search the web. There are many websites about Islam. There is at least one website that will send you a translation of the Qur'an - for free. That's the best way to find out what Muhammad's 'teachings' are all about. You will find that, just like Moses, Muhammad was suddenly called by God to deliver His message to Mankind. It is a revelation from the Creator.
Some people were because he taught that there was only one God, Allah, and some people in Saudi Arabia were polytheistic, believing in many Gods, and they didn't like being told to stop worshipping their Gods. In whole history, people around the world follow different teachings. Even in one family, one likely finds different if not opposing views about life. So, naturally, for every teaching addressed to the masses (said from Heaven or not) there are always people opposing it (even in matters said scientific) and Muhammad's teachings are not an exception.
The key, per Islam, to a successful living is to follow the teachings of Quran and Sunnah (prophet Muhammad (PBUH) sayings and practices). Refer to related questions below for more information.
The good morals; mainly Honesty and keeping promise; per Islam and prophet Muhammad (PBUH) teachings
Muhammad preached that people are equal, and that the rich should share thier wealth with the poor
Seems that the Romans and the religious establishment at the time did not like Christ's teaching. This is according to the New Testament. To the honest inquirer, Christ's teachings might be seen as irrational or unreasonable.
Buddhism reached Japan in the 6th century CE through Korean and Chinese influences. Factors contributing to its spread and establishment in Japan include the support of the ruling elite, the appeal of Buddhist teachings to the common people, and the integration of Buddhist practices with indigenous beliefs and customs.