Thank you for using the Jiskha Homework Help Forum. Here is some help for you:
4. (European minority languages): http://www.smo.uhi.ac.uk/saoghal/mion-chanain/en/
5. (oldest language): (Broken Link Removed)
6. (language maps & German dialects): http://userweb.port.ac.uk/~joyce1/dialects/mapeuro.html
7. (World Wide digital map site listed on menu): http://vlib.iue.it/hist-russia/utilities.html
Best of luck! I spent months a long time ago doing research on all the languages. Finally I had a very thick manual, which I kept even thought it was on ditto = that will tell you how LONG ago it was!