If you want to get technical Christianity Islam Judaism all believe in the same God and they're all sons of Abraham... Christians and Islam have a different Messiah and Judaism just doesn't have one same God ..
That's a common error..A.D. stands for anno dommini.. in Greek or something, which means in the year of our Lord.. with 1 A.D. Being the year he was born.. trust me.. I'm a priest believe it or not
