Like Genesis 5:32 with Shem, Ham, and Japeth, Genesis 11:26 makes it appear that Abram (Abraham), Nahor, and Haran, were all triplets. However, as we saw with Shem, Ham, and Japeth, the Bible when listing three people all born to the same father in the same year is not necessarily suggesting that they were all triplets. With Shem, Ham, and Japeth there is satisfactory evidence to suggest that Shem was born 2 years later than Japeth, and Ham was the youngest. However, with Abram, Nahor, and Haran, we have nothing else to go on in regards to Nahor and Haran than what we are told in Genesis 11:26, and therefore the timeline assumes Nahor, and Haran are twins and were both born when Terah was 70 years old. This assumption is probably wrong, and most likely only one of them was born at this time. However, like the case of Shem, Ham, and Japeth, the evidence suggests that Abram was not born when Terah was 70 years old.
When was Abram (Abraham), Nahor, and Haran born