Note - These are very much estimates only, as the scripture is most silent on the ages of these youths. However, to say there was considerable immaturity, is, I think, fair comment.
| Early 1762 BC | Judah born |
| Mid 1750 BC | Judah takes Shuah to be his wife |
| Early 1749 BC | Er born |
| End 1749 BC | Onan born |
| Early 1747 BC | Shelah born |
| 1742 BC | |
| 1737 BC | Judah takes Tamar to be a wife for Er. Er dies. |
| 1737 BC | Judah tells Onan to marry Tamar in his brother's name. Self interest means Onan refuses to help Tamar conceive. Onan dies. |
| End 1737 BC | Judah tells Tamar to wait at her Father's house for Shelah to reach puberty. Judah has no intention of keeping his word however, having lost 2 sons. |
| End 1735 BC | Judah's wife Shuah dies. Tamar tricks Judah and becomes pregnant by him. Judah, on learning the truth, acknowledges his betrayal of her. |
| Late 1734 BC | Twins born - Pharez and Zerah |
In 1721 BC, Hezron is born as the son of Pharez, and in 1720 BC Hamul is born as his second son. And Jacob takes both these great-grandchildren to Egypt
**End of Date Estimates