Metric system was born when France adopted the system in 1795. Gabriel Mounton, a French vicar, proposed the system in 1670. The Convention of the Metre in 1875 standardized most measurements. Today the United States is one of only a few countries that do not use the metric system. Children can learn more at: Metric System.
United Nations World Health Day remembers the creation of the World Health Organization (WHO). This year’s theme is “Universal Health Coverage: everyone, Everywhere.” WHO has six agendas: promoting development, fostering health security, strengthening health systems, harnessing research, information and evidence, enhancing partnerships, and improving performance. Children can learn more at: http://www.who.int/world-health-day/en/.
Internet’s symbolic birthday is today in 1969 when RFC1 (Request for Comments) was published. Children can view a timeline of the internet at: http://www.factmonster.com/ipka/A0193167.html.
2001 Mars Odyssey was launched on this date and reached Mars on October 24, 2001. The robotic satellite began to send back data on February 19, 2002. Now 2001 Mars Odyssey is the oldest operating spacecraft beyond earth. Children can learn more at: 2001 Mars Odyssey.