Template:Selected anniversaries/February 15: Difference between revisions

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||1954 – Canada and the United States agree to construct the Distant Early Warning Line, a system of radar stations in the far northern Arctic regions of Canada and Alaska.
||1954 – Canada and the United States agree to construct the Distant Early Warning Line, a system of radar stations in the far northern Arctic regions of Canada and Alaska.


||1959 Owen Willans Richardson, English physicist and academic, Nobel Prize laureate (b. 1879)
File:Owen Richardson.jpg|link=Owen Willans Richardson (nonfiction)|1959: Physicist and academic [[Owen Willans Richardson (nonfiction)|Owen Willans Richardson]] dies. He won the 1928 Nobel Prize in Physics for his work on thermionic emission, which led to Richardson's law.


||1972 – Sound recordings are granted U.S. federal copyright protection for the first time.
||1972 – Sound recordings are granted U.S. federal copyright protection for the first time.

Revision as of 12:48, 18 November 2017