When:
May 20, 2017 all-day
2017-05-20T00:00:00-06:00
2017-05-21T00:00:00-06:00
Where:
http://www.bipm.org/en/home/
Anniversary of international treaty, signed 20 May 1875, providing for the establishment of an International Bureau of Weights and Measures. The bureau was founded on international territory at Svres, France.
Image courtesy of Pixabay.com
