Chronological history by decade from
History of Research at the U.S. Department of Agriculture and Agricultural Research Service
Blue=USDA research accomplishment
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Cattle ticks, when feeding, balloon in size.
ARS maintains a committment to students at 1890 schools and throughout the public education system.
Collecting and freely sharing plants and seeds that grow around the world is one of the U.S. Department of Agriculture's longest continuous programs.
Developed simple test to determine butterfat content of milk.
McKinley Tariff Act passed with a tariff on some agricultural products.
The second Morrill Land-Grant College Act authorized separate land-grant colleges for Negroes—17 were established.(more)
Meat Inspection Act authorized inspection of salted pork, bacon, and live animals intended for export, and the quarantine of imported animals.
Of gainfully employed persons, 43 percent were engaged in agriculture.
Combination corn-shucking and fodder-shredding machine patented.
Nitrifying bacteria isolated from soil.
Bacteria shown to cause plant diseases, including tumors.
Antibodies proposed as responsible for immunity.
Contagious bovine pleuropneumonia eradicated.
Cotton boll weevil found near Brownville, TX.(more)
Canadian Marquis, first successful cross-bred spring wheat, released.
Milestone document in soil conservation published: Farmer's Bulletin No. 20, Washed Soils: How to Prevent and Reclaim Them.(more)
Insects shown to spread plant diseases.
Concluded that disease could be caused by depriving body of certain substances, later defined as vitamins.(more)
First funds officially appropriated to collect, test, and prepare foreign plant materials. (more)
Send comments or questions about this historical timeline to Sean Adams.