Yes, Abraham is both the Father of Christianity and Islam.Christianity evolved into a peace and love religion where Islam still does the eye for an eye and other ancient rules of law.
According to the History Channel , everything in the Bible can be explained by Aliens who came here and did all those miracles.
Don’t blame God’s Law for Islam. They made up their own.
The Bible knows nothing about Islam. Islam came 500 years after Christ died; a full 200+ years after the Canon was closed. Islam picks and chooses from the Bible, forming a systematic theology that is inconsistent, not resembling Judaism or Christianity.
Christianity didn’t “evolve”. God shifted to the Gospel of Jesus Christ, which was the plan all along (Ephesians) before the foundation of the world; bringing Jew and gentile into the Kingdom as adopted sons in one body: the church.