In this sense:
- Islam per God revelation of Torah to Moses is called Judaism.
- Islam per God revelation of the bible to Jesus is called Christianity.
- Islam per God revelation of Quran to Muhammad is called the very name Islam.
Islam religion per Quran revelation to prophet Muhammad began in year 610 AD by God revelation of first verses of Quran to prophet Muhammad through the angel Gabriel (Jibril).
Refer to the question below for more information.
Islam is the religion given to mankind by Almighty God. It came into existence with the first man stepping on the earth. Hazrat Adam (AS) was the first Muslim and first Prophet of Islam. All the Prophets (May peace be upon them all) had been teaching/preaching Islam. The last prophet of Islam Hazrat Muhammad (May peace be upon him) was born in Mecca, Arabia, in 570 AD. The country is now known as The Kingdom of Saudi Arabia. He started preaching Islam in 610 when he was 40. Islam teaches universal human brotherhood and equality of all human beings irrespective of caste, creed, color and country. It is the favorite religion of Almighty God. It for all human beings. Almighty God has created us all and loves us