Date: | 1867 |
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Description: | A diagram of McCormick's cultivator-reaper, which was patented in 1845. The illustration, titled "The Cultivator" depicts a man using a rake to remove the ... |
Date: | 1861 |
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Description: | Panoramic view of downtown Chicago before the fire of 1871. The photograph was taken from the South side of the Chicago River, looking Northeast. The Rush ... |
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