Cowpox to the mild form of smallpox and the observation that dairy farmers were immune from smallpox inspired the first smallpox vaccine, created and administered by English physician Edward Jenner. The word “vaccination,” coined by Jenner in 1796, is derived from the Latin root "vaccinus", meaning of or from the cow. Once vaccinated, a patient develops antibodies that make them immune to cowpox, but they also develop immunity to the smallpox virus, or "Variola virus". The cowpox vaccinations and later incarnations proved so successful that in 1980, the World Health Organization announced that smallpox was the first disease to be eradicated
Early clashes in the Rhine campaign of 1796 Early clashes in the Rhine campaign of 1796 In the Rhine Campaign of 1796 (June 1796 to February 1797), two First Coalition armies under the overall command of Archduke Charles outmaneuvered and defeated two Republican French armies. This was the last campaign of the War of the First Coalition, part of the French Revolutionary Wars. The French military strategy against Austria rested on a three-pronged invasion to surround Vienna, ideally capturing the city and forcing the Holy Roman Emperor into a surrender and acceptance of French Revolutionary ideals. Toward this end, the French assembled three armies: "Army of Sambre-et-Meuse" commanded