ED-209: On This Day (March 22): Difference between revisions

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File:ED-209 - Tuberculosis bacterium - 24 March 1882.jpg|link=ED-209: On This Day (March 24)|"'''[[ED-209: On This Day (March 24)|24 March 1882]]''': Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis. That is all." —ED-209
File:Great Red Spot Cat Toys.jpg|link=Great Red Spot Cat Toys|'''[[Great Red Spot Cat Toys]]''' is an unlicensed transdimensional corporation which manufactures and distributes novelty oversized laser pointer toys for cats.
File:ED-209 - Butler Act (21 March 1925).jpg|link=ED-209: On This Day (March 21)|"'''[[ED-209: On This Day (March 21)|21 March 1925]]''': The '''Butler Act''' prohibits the teaching of '''human evolution''' in '''Tennessee'''. That is all." —ED-209
File:ED-209 - Butler Act (21 March 1925).jpg|link=ED-209: On This Day (March 21)|"'''[[ED-209: On This Day (March 21)|21 March 1925]]''': The '''Butler Act''' prohibits the teaching of '''human evolution''' in '''Tennessee'''. That is all." —ED-209


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* [[ED-209: On This Day (March 21)]
* [[ED-209: On This Day (March 21)]
* [[ED-209: On This Day (March 24)]]
* [[Gnomon algorithm]]
* [[Gnomon algorithm]]
* [[Gnomon Chronicles]]
* [[Gnomon Chronicles]]
* [[Great Red Spot Cat Toys]]


== Nonfiction cross-reference ==
== Nonfiction cross-reference ==
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* [ Post] @ Twitter (22 March 2023)
* [ Post] @ Twitter (22 March 2023)


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[[Category:Lasers (nonfiction)]]
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Latest revision as of 09:59, 6 May 2024

ED-209 announces the first patent for a laser.

On This Day in History: 22 March 1960:

Arthur Leonard Schawlow and Charles Hard Townes receive the first patent for a laser.

That is all.

See ED-209: On This Day in History.

In the News

  • "24 March 1882: Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis. That is all." —ED-209

    "24 March 1882: Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis. That is all." —ED-209

  • Great Red Spot Cat Toys is an unlicensed transdimensional corporation which manufactures and distributes novelty oversized laser pointer toys for cats.

    Great Red Spot Cat Toys is an unlicensed transdimensional corporation which manufactures and distributes novelty oversized laser pointer toys for cats.

  • "21 March 1925: The Butler Act prohibits the teaching of human evolution in Tennessee. That is all." —ED-209

    "21 March 1925: The Butler Act prohibits the teaching of human evolution in Tennessee. That is all." —ED-209

Fiction cross-reference

Nonfiction cross-reference

External links

Social media

  • [ Post] @ Twitter (22 March 2023)
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