Errors in the history account of the Bible, Joshua, wars...

Other than the contradictions that Paul already has pointed out in the Torah, there are a multitude of other errors, contradictions and later redactions.

Here is one example:
"Also archaeological evidence contradicts the picture in Joshua. In the Ancient Near East, destroyed cities tended to be leveled, and then a new city would just be built on top of the ruins, and you would have these slowly rising mounds — each one of those is called a tell (so you may have heard of Tell Dor?). These are mounds which represent the successive layers of destroyed and rebuilt cities. And excavations will reveal the destruction layers under the floor of new cities. So following the biblical account, we would expect evidence of a thirteenth century destruction of Canaanite cities. And archaeologists for a long time were convinced that they would find these destruction layers. But they were disappointed. They have found really no evidence of extensive conquest and destruction in thirteenth and twelfth century archaeological layers. Some of the sites that are said to be destroyed by Joshua and the Israelites weren't even occupied in this period, the late Bronze Age, beginning of the Iron Age; the Iron Age begins around 1200. Excavations at Jericho and Ai indicate that both of these towns were laid waste at least 200 years before the probable time of Joshua; so there weren't even any walls in Jericho at the time of Joshua. Of 20 identifiable sites that were said to be conquered or captured by Joshua and the next generations, only two show destruction layers for this time, Hazor and Beth-el. And yet interestingly enough, Hazor's capture described in Joshua is contradicted elsewhere in the Bible, because in Judges 4 and 5, it is still a Canaanite city. It is said there that it is still a Canaanite city and Joshua failed to take it."
[Source: http://oyc.yale.edu/religious-studies/rlst-145/lecture-12 ]