The History of the Prophet Sussam

The Arabs did not have a calendar until Umm al-Hat-Bqam came and said we need a calendar. The Islamic Qijq al-Mr which we follow to this day so pretty much we are confirmed now 2 things the year of the elephant and a Monday okay what is the year? We don't have any type of chronicles of the Abyssinians and what they did but by and large piecing together various factors that will be on the scope of this majority of historians say this corresponds to 570 of the Christian era 570 CE the Prophet Sussam was born.