Many Muslims believe that the birthday of the Prophet (PBUH) was on the 12th of Rabi al-Awwal. Dr. Yasir Qadhi holds a very interesting discussion about the Prophet’s birthday.
We know that it was a Monday and in the Year of the Elephant but not sure exactly of the year although most of the scholar says it was 570 of the Christian Era. There are some differences regarding the date.
Watch the video for some interesting discussion.