On This Day

French bacteriologist Alexandre Yersin discovers bacillus responsible for the bubonic plague in Hong Kong (Yersinia pest

French bacteriologist Alexandre Yersin discovers bacillus responsible for the bubonic plague in Hong Kong (Yersinia pestis named in his honor)

Alexandre Émile John Yersin (22 September 1863 – 1 March 1943) was a Swiss-French physician and bacteriologist. He is remembered for his work as a pioneer in microbiology and immunology. Yersin is the co-discoverer of both the Diphtheria and Tetanus toxins (1890 with Émile Roux) and of the bacillus responsible for the bubonic plague or pest (1894, with Kitasato Shibasaburō). The bacteria was later named in his honour: Yersinia pestis. Yersin also demonstrated for the first time that the same bacillus was present in the rodent as well as in the human disease, thus underlining the possible means of transmission.

Historical Significance

Alexandre Émile John Yersin (22 September 1863 – 1 March 1943) was a Swiss-French physician and bacteriologist.

Events Before

  1. First U.S. college extension courses for credit are offered at the University of Chicago

    The University of Chicago (UChicago, Chicago, UChi, or U of C) is a private research university in the Hyde Park community area of Chicago, Illinois, United States. The university is composed of an...

  2. British poet and writer Rudyard Kipling (26) weds Carrie Balestier (29) at All Souls Church in Langham Place, London, En

    British poet and writer Rudyard Kipling (26) weds Carrie Balestier (29) at All Souls Church in Langham Place, London, England; writer. Henry James gave away the bride

  3. Thomas Edison completes the world's first movie studio in West Orange, New Jersey

    Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman.

  4. Panic of 1893 causes a large crash on the NY Stock Exchange

    Panic of 1893 causes a large crash on the NY Stock Exchange

  5. Henri Desgrange establishes world's 1st bicycle world record, travelling 35.325 km (21.95 miles) an hour

    Henri Desgrange establishes world's 1st bicycle world record, travelling 35.325 km (21.95 miles) an hour

Events After

  1. Norway adopts Central European time

    Central European Time (CET) is a standard time observed in Central as well as parts of Western and Southeast Europe, which is one hour ahead of Coordinated Universal Time (UTC).

  2. Philippine revolutionary Emilio Aguinaldo becomes a Freemason, joining Pilar Lodge No. 203 in Imus, Cavite

    Emilio Aguinaldo y Famy was a Filipino revolutionary, statesman, and military leader who was the first president of the Philippines from 1899 to 1901, and the first president of an Asian...

  3. J. Edgar Hoover is born

    J. Edgar Hoover, American law enforcement administrator, known for american law enforcement administrator, was born on 1895-01-01.

  4. Gustav Mahler conducts the premiere of his incomplete 2nd Symphony ("Resurrection") in Berlin, Germany, with the Berlin

    Gustav Mahler conducts the premiere of his incomplete 2nd Symphony ("Resurrection") in Berlin, Germany, with the Berlin Philharmonic; the complete version debuts in December

  5. Auguste and Louis Lumière show their first movie to an invited audience

    Auguste and Louis Lumière show their first movie to an invited audience

More from the 1890s

Frequently Asked Questions

What happened on June 20, 1894?
Alexandre Émile John Yersin (22 September 1863 – 1 March 1943) was a Swiss-French physician and bacteriologist. He is remembered for his work as a pioneer in microbiology and immunology. Yersin is the co-discoverer of both the Diphtheria and Tetanus toxins (1890 with Émile Roux) and of the bacillus responsible for the bubonic plague or pest (1894, with Kitasato Shibasaburō).
Why is French bacteriologist Alexandre Yersin discovers bacillus responsible for the... significant?
Alexandre Émile John Yersin (22 September 1863 – 1 March 1943) was a Swiss-French physician and bacteriologist.

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