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Anne Kelly Knowles, the winner of Smithsonian American Ingenuity Awards, uses GIS technology to change our view of history
Al Picozzi's insight:
Great piece of information on how GIS can be used to change, or at least offer, a different explanation of why something happened. On day 2 of Gettysburg Longstreet was ordered to attack the lrdt of the Union line, Little and Big Roundtop. Lee wanted to attack early, but Longstreet was not in position until about 4:00pm. As shown by GIS Lee could not have seen why based on his position. He also could not see the numbers that were against him in that position. Lee was actually outnumbered when Longstreet attacked. Longsreet also had to march a longer way to keep his troop from fire. This new information shows that Lee, who was brillant for most of the Civil War, made a mistake becasue he just could not see what was there, he did not know what forces were against Longstreet. Imagine today with our instant communication how GIS and help commanders today determine where to place troops, defenses, etc.
Take a look here for further insight on GIS and Gettysburg. http://www.lakewyliepilot.com/2013/06/28/1961555/new-map-may-explain-lees-decisions.html