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According to the September 10, 1996 issue of the Seattle Times:

  1. The lodgepole pine forest suddenly died 10,900 years ago (3633 x 3). “The weather here changed so fast and so severely that the forest of the lodgepole pine that had succeeded Ice Age glaciers died in a blink.” “This is catastrophic climate change”, said paleobotanist Richard Hebda. 900 years later, the climate was back to “normal”.
  2. Ice Age glaciers retreated from the Seattle area 14,000 years ago (3500 x 4)

Page 22-23 of Early Man in the New World by Kenneth MacGowan (1950) shows charts of major glacial changes 18,000 years ago (3600 x 5), 25,000 years ago (3570 x 7), 40,000 years ago (3636 x 11), and 65,000 years ago (3611 x 18)!

According to Encarta:

  1. The Dalton era, which started about 10,500 (3500 x 3) years ago and lasted about 1,000 years in Arkansas.
  2. The first animals used in husbandry were domesticated in southwest Asia 11,000 years ago (3636 x 3).
  3. Most sequoias suffered extinction 11,000 years ago (3636 x 3)
  4. About 11,000 years ago (3636 x 3), the axis of the earth pointed so as to give the northern hemisphere colder winters and warmer summers.
  5. Norway was inhabited 14,000 (3500 x 5) years ago.
  6. Indianapolis is located on the Tipton Till Plain, an area of flat to gently rolling land shaped 18,000 (3600 x 5) years ago.
  7. The peak of the last ice age was 22,000 (3667 x 6) years ago.
  8. The Great Salt Lake is a shallow remnant of Lake Bonneville, a large deep freshwater lake that occupied much of western Utah and parts of Nevada and Idaho from approximately 50,000 (3571 x 14) years ago to approximately 25,000 (3571 x 7) years ago.

According to an October 9, 1998 article from the Associated Press and Science magazine, a major ice age occurred 22,000 years ago(6 x 3666).

Researched by John.