Saturday: To this day?

From Joshua 13-15:

1. It is interesting that God lists off some areas that still need to be conquered by the Israelites, but then goes on to say that the area of the Sidonians - that God himself will drive them out before the Israelites.

2. In Chapter 13 it specifically mentions the fact that the Israelites killed Balaam son of Beor.

3. All of the detail as to the exact inheritance given to the Israelite tribes by God ought to identify that this is indeed a historically factual and authentic record. Otherwise there would not likely be as much detail.

4. It is interesting that the land of Hebron was given to Caleb and it says that Joshua blessed Caleb. It also says that the land then had rest from war. I wonder if this is referring to Hebron because now Caleb is the owner, or if this is more of a general statement about the entire land of Canaan. Because it later talks about Caleb going to war for his alloted land.

5. I am not certain why it went into such detail about the one person who won Caleb's daughter and then how Caleb gave her the upper and lower springs. Why do we need to know this? What is significant about it?

6. To this day? - It records in chapter 15 at the end of the chapter that "living in Jerusalem; to this day the Jebusites live there with the people of Judah." This has to mean that this passage was written before David conquered it and made it the capital of the nation.