Genesis 12:4
NIV - 4 So Abram went, as the Lord had told him; and Lot went with him. Abram was seventy-five years old when he set out from Harran.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
Harran was a major ancient city in upper Mesopotania near the modern village of Altinbasak , Turkey 44km southeast of Sanliurfa.