Islam religion was not introduced by Arabs. It is God religion introduced by God since start of universe creation and even before.
Islam is an Arabic word that means submission and surrender to God (as the one and only one God). Accordingly:
if you mean Islam in its general sense, then Islam began by the universe creation where all God creatures were created under their submission (Islam) to God. Upon start of mankind, they are taught through God prophets to be on full submission (Islam) to God. Islam is then introduced through the period from universe creation until prophet Muhammad (peace be upon him) death in year 632 AD.
All prophet missions; including Noah, Abraham, Moses, Jesus, and Muhammad, was to hold submission (Islam) to the one and only one God, the Creator, with no partner, no son, no father, no companion, no associate, and no resemblance (defined as monotheism).
In this sense:
If you mean Islam religion per God revelation of Quran to prophet Muhammad, then it was founded by the start of Quran revelation by God to prophet Muhammad through the Angel Gabriel (Jibril) in Mecca (or Makkah; currently in the Kingdom of Saudi Arabia) in year 610 AD. Quran revelation continued also when the prophet (peace be upon him) migrated to Medina (also in the Kingdom of Saudi Arabia) until prophet death in year 632 AD. So, Islam continued from year 610 AD through year 632 Ad (year of prophet Muhammad death). The core Islam message is to worship only One God (The Creator) with no partner, no son, no companion, and no associate. Prophet Mohammad came to re-institute, the religion of Adam, Noah, Abraham, Moses and Jesus.
Prophet Mohammed (peace and blessings of Allah) was ordered by Allah "God" the creater to call on his tribe members and invite them to Islam "believing in Allah as one and as the only creator of this universe who derseves to be worshipped alone. All believers are also ordered to spread it to the world and save people from the darkness they living in "disbeleef in this life" and hellfire in the life after after reserruction.
Allah said in the holy Quran:
يَا أَيُّهَا الرَّسُولُ بَلِّغْ مَا أُنزِلَ إِلَيْكَ مِن رَّبِّكَ ۖ وَإِن لَّمْ تَفْعَلْ فَمَا بَلَّغْتَ رِسَالَتَهُ ۚ وَاللَّـهُ يَعْصِمُكَ مِنَ النَّاسِ ۗ إِنَّ اللَّـهَ لَا يَهْدِي الْقَوْمَ الْكَافِرِينَ ﴿٦٧﴾
O Messenger, announce that which has been revealed to you from your Lord, and if you do not, then you have not conveyed His message. And Allah will protect you from the people. Indeed, Allah does not guide the disbelieving people. (67) (the Panquet)
قُلْ أَيُّ شَيْءٍ أَكْبَرُ شَهَادَةًۖ قُلِ اللَّـهُۖ شَهِيدٌ بَيْنِي وَبَيْنَكُمْ ۚ وَأُوحِيَ إِلَيَّ هَـٰذَا الْقُرْآنُ لِأُنذِرَكُم بِهِ وَمَن بَلَغَ ۚ أَئِنَّكُمْ لَتَشْهَدُونَ أَنَّ مَعَ اللَّـهِ آلِهَةً أُخْرَىٰۚ قُل لَّا أَشْهَدُۚ قُلْ إِنَّمَا هُوَ إِلَـٰهٌ وَاحِدٌ وَإِنَّنِي بَرِيءٌ مِّمَّا تُشْرِكُونَ ﴿١٩﴾ Say, "What thing is greatest in testimony?" Say, "Allah is witness between me and you. And this Qur'an was revealed to me that I may warn you thereby and whomever it reaches. Do you [truly] testify that with Allah there are other deities?" Say, "I will not testify [with you]." Say, "Indeed, He is but one God, and indeed, I am free of what you associate [with Him]."
Islam is not limited to the Arabs. Islam is for all human beings. It appeals to humans for its teachings which are based on equality of all humans. Its teachings about truth, honesty, justice, peace, kindness, tolerance, and love for all humans. It especially appeals to the poor and downtrodden. . It safeguards the rights of all humans.
Islam.
numerals
Yes, Arabs were polyethnic at that time.
Arabs converted to Islam before Persians did. By 633 CE, almost all Arabian Arabs were Muslims, but almost all Persians were Zoroastrians.
No. Arabs are typically Muslims, and Islam forbids the consumption of dogs.
Islam.
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Arabs brought Islam to Africa.
Christianity and Islam
Islam.
There is only one kind of Islam religion and it did start in Saudi Arabia and Arabs were the first Muslims
Yes, Arabs were polyethnic at that time.
Islam, specifically Sunni Islam.
They believed Islam to be moral and desirable.
Arabs converted to Islam before Persians did. By 633 CE, almost all Arabian Arabs were Muslims, but almost all Persians were Zoroastrians.
No. Arabs are typically Muslims, and Islam forbids the consumption of dogs.
Islam.