Sorry, Subman?
There is consensus that the "birth of independant Muslim identity" is associated with Muhammad fleeing to Medina in 622 (hidjra). It was Mohammed who then constructed a theology that claimed to have a basis that reaches back through time and labelled Jesus as one of Islam'S prophets, and other biblic prophets as well. queer.
Islam is 1400 years old (the previous Abrahamic cult does not count, it was something diffrent and never mentioned anything like Allah or Muhammad or Qu'ran. The Ka'aba cult that embraced the former Abrahamic cult was changed by Muhammad, not to be independent anymore, but supporting newly created Islam). Christianity with focus on Jesus is 2000 years old. Makes a difference of 6oo years.
Let'S leave Noah out of this