Celebrating Scientific Milestones

At the upcoming 2019 AAAS Annual Meeting, three critical scientific milestones in science will be celebrated.

In 1869,

Dmitri Mendeleev presented the Periodic Table, which documented the atomic weights and valence of the many elements that make up Earth, to the Russian Chemical Society.

One hundred years later, in 1969,

history was made by NASA with the first moon walk by Neil Armstrong, made possible by Apollo 11’s successful landing on the moon.

On the ground in California that same year,

the first ARPANET message was sent from the University of California, Los Angeles to the Stanford Research Institute. This early network became the basis for today’s Internet.
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