Solomon Reigned more then 40 years.

I have argued before that Solomon was the youngest son of Bathsheba. But even if he was conceived right after the child who died like traditionally assumed, it still seems unlikely he was a whole 20 when he became King based on how much stuff in David's reign happened before all of this. 

But there are reason besides his age I doubt Solomon had married or had kids before he became King, certainly not one of his Ammonite wives as his taking wives from those peoples is firmly tied to his errors made after reigning for awhile, the daughter of Pharoah was the first of them and she definitely didn't predate him becoming King. 

1 Kings 14:21-31 and 2 Chronicles 12:13 tell us Rehoboam was the son of an Ammonite wife named Naamah.  As well as that he was 41 years old when he began to reign. 

So the popular view that Solomon reigned only 40 years is an issue.

1 Kings 11:42/2 Chronicles 9:30 say Solomon reigned in Jerusalem 40 years. And while you can justifiably interpret that as applying to his entire reign even considering what I'm about to point out, it's not the only interpretation. 

Because 1 Kings 9:10/2 Chronicles 8:1 tell us The Temple and his Royal Palace were under construction for 20 years. And 1 Kings 6:1-37/2 Chronicles 3:2 say it was 3 years into his reign he began building The Temple.

1 Kings 3:1 says when Solomon married the Daughter of Pharoah he first brought her into The City of David. 1 Kings 9:24 and 2 Chronicles 8:11 had him bring her out of the City of David and into Jerusalem at the end of that 20 year period. 

As I have firmly proven in a prior post, The City of David was never Jerusalem Biblically.

So it sounds like Solomon ruled from the City of David till all the construction was complete.

So that's a total of 63 years.

But most important to wider chronology, it adds 20 years BC to when the foundations of The Temple were laid.  

If you accept the mainstream view of the Divided Kingdom period then the starting of The Temple is moved from 966 BC to 986 BC and thus a face value reading of 480 years before that for the Exodus is 1466 BC. 

Adding only this correction to Ussher's numbers moves the Exodus from 1492 BC to 1512 BC. I still think Ussher is right on the Divided Kingdom period, each Assyrian connection used to move the timeline down is flawed. 

But I unlike Ussher hold an Acts 13 view of The Judges period. Before I came to this conclusion about Solomon's reign that had me favoring a 1606 BC Exodus but that's now corrected to a 1626 BC Exodus with the entry into Canaan happening in 1586 BC.

So the (with some margin of error) roughly 1573 BC Carbon date estimate for the Destruction of Jericho is not the a problem for Biblical Chronology, nor does it require any Revised Chronology. 

The reconciliation with the 480 year reference is that that number excluded the time spend under oppression and the 2 year reign of Abimelech.