Celebrating Maine’s Bicentennial Timeline of Maine History 01: Origins
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23,000 BCE – 1121 -23,000 The most recent glacial episode in Maine began about 25,000 years ago, when the Laurentide ice sheet overspread New England. -19,000 Climatic warming forced the Laurentide ice sheet to start receding. -11,800 Ice sheet recedes from the continental shelf east of Long Island and reaches the present position of the…