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Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
Levallois points and flakes from Kapthurin, Kenya date to between 200,000 and 280,000 years ago.
During the Pullman strike in Chicago, workers protesting wage cuts did $340,000 in property damage,
“Mission Accomplished” proclaimed the banner on the USS Abraham Lincoln, where on May 1, 2003, Presi
The apples of today are larger and sweeter than their ancestors, thanks to hundreds of years