Stay Informed
2500 BCE - 200 CE | Stone
2500 BCE - 200 CE | Copper
2000 BCE -- 1 CE | Copper
700 - 1600 CE | Bone
700-1600 CE | Stone -- sandstone
1000 BCE -- 700 CE | Bone
Unknown | Stone
3000 -- 100 BCE | Stone
1000 BCE -- 1000 CE | Stone
6000-1000 BCE | Stone
8000-1000 BCE | Stone -- probably shale
2500 -- 200 BCE | Stone
2500 - 200 BCE | Stone
500 BCE-500 CE | Stone
8000-1000 BCE | Stone, granite
500 BCE -- 500 CE | Stone -- Ohio flint, Ridge Chalcedony
3000 -- 1000 BCE | Stone
