240,000 - 234,000
234,000 - 228,000
228,000 - 222,000
222,000 - 216,000
216,000 - 210,000
210-180
180-150
30K
240 - 210 K
6K
60-30
30-0
150-120
10th Great Year 259.92 - 233.28
9th Great Year 233.28 - 207.36
Pleistocene Epoch 1.8 million - 10 K