History
Diphtheria toxin was discovered in 1890 by Emil Adolf von Behring. In 1951, Freeman found that the toxin gene was not encoded on the bacterial chromosome, but by a lysogenic phage infecting all toxigenic strains.
Read more about this topic: Diphtheria Toxin
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“The history of literaturetake the net result of Tiraboshi, Warton, or Schlegel,is a sum of a very few ideas, and of very few original tales,all the rest being variation of these.”
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“I believe that in the history of art and of thought there has always been at every living moment of culture a will to renewal. This is not the prerogative of the last decade only. All history is nothing but a succession of crisesMof rupture, repudiation and resistance.... When there is no crisis, there is stagnation, petrification and death. All thought, all art is aggressive.”
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Leaving at last not much besides chronology,
Excepting the post-obits of theology.”
—George Gordon Noel Byron (17881824)