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We reached one million observation records in the database on Monday, April 30, 2012! That's one million standardized records on the status of a phenophase for a plant or animal, collected by participants in Nature's Notebook, citizen and professional scientists across the nation.

Joe Caprio initiated the first spatially extensive phenology monitoring in the United States. As a professor in the College of Agriculture at Montana State University, he collaborated with agricultural experiment stations in the 1950s to employ phenology to characterize seasonal weather patterns and improve predictions of crop yield. This project eventually included around 2,500 volunteer observers distributed throughout 12 Western states.