1 About Me 8
2 Education
3 Philosophy
4 Politics
5 News
6 Travel
7 Sports
8 Funding
3900s
3800s
3700s
3600s
3500s
3900s
3800s
3700s
3600s
3500s
39 - 1600 Banded flint nodule in the wall of an adit in the Krzemionki mine complex Poland