About the name Dan. I have a Danish friend who said that Denmark is named after the Tribe of Dan....That was one of the Ten Lost Tribes and it all happened so long ago that facts are up for grabs. We do know that the ten tribes included the Tribe of Dan and that they all were taken captive by the Assyrians, the Babylonians and then the Persians and they all just turned up missing. The remaining tribes were Judah, Levi (priestly tribe) and Benjamin. These tribes made it into the modern world as the Jews.
Here are a couple of websites which will provide more information than you can imagine:
http://thecapitalscot.com/pastfeatures/tribes.html
and
http://watch.pair.com/dan.html

The latter is entitled The Lost Tribe of Dan and is 20 pages long with a lot of Biblical stuff. It's very interesting and some of it might just be historical.
Good luck,
Barbara Chimene