The social history of viruses describes the influence of viruses and viral infections on human history. Epidemics caused by viruses began when human behaviour changed during the Neolithic period, around 12,000 years ago, when humans developed more densely populated agricultural communities. This allowed viruses to spread rapidly and subsequently to become endemic. Viruses of plants and livestock also increased, and as humans became dependent on agriculture and farming, diseases such as potyviruses of potatoes and rinderpest of cattle had devastating consequences.

Smallpox and measles viruses are among the oldest that infect humans. Having evolved from viruses that infected other animals, they first appeared in humans in Europe and North Africa thousands of years ago. The viruses were later carried to the New World by Europeans during the time of the Spanish Conquests, but the indigenous people had no natural resistance to the viruses and millions of them died during epidemics. Influenza pandemics have been recorded since 1580, and they have occurred with increasing frequency in subsequent centuries. The pandemic of 1918–19, in which 40–50 million died in less than a year, was one of the most devastating in history. (Full article...)

Astronaut Buzz Aldrin, Apollo Lunar Module pilot, walks on the surface of the Moon near the leg of the Lunar Module Eagle during the Apollo 11 extravehicular activity (EVA). Astronaut Neil A. Armstrong, commander, took this photograph with a 70mm lunar surface camera. While astronauts Armstrong and Aldrin descended in the Eagle to explore the Sea of Tranquility region of the Moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Module Columbia in lunar orbit.

...that in the history of paleontology, very few naturalists before the 17th century recognized fossils as the remains of living organisms?

...that on January 17, 2007, the Doomsday Clock of the Bulletin of the Atomic Scientists moved to "5 minutes from midnight" in part because of global climate change?

...that in 1835, Caroline Herschel and Mary Fairfax Somerville became the first women scientists to be elected to the Royal Astronomical Society?

Georg Forster at age 26, by J. H. W. Tischbein, 1781

Johann George Adam Forster, also known as Georg Forster (German pronunciation: [ˈɡeːɔʁk ˈfɔʁstɐ], 27 November 1754 – 10 January 1794), was a German geographer, naturalist, ethnologist, travel writer, journalist and revolutionary. At an early age, he accompanied his father, Johann Reinhold Forster, on several scientific expeditions, including James Cook's second voyage to the Pacific. His report of that journey, A Voyage Round the World, contributed significantly to the ethnology of the people of Polynesia and remains a respected work. As a result of the report, Forster, who was admitted to the Royal Society at the early age of twenty-two, came to be considered one of the founders of modern scientific travel literature.

After returning to continental Europe, Forster turned toward academia. He taught natural history at the Collegium Carolinum in the Ottoneum, Kassel (1778–84), and later at the Academy of Vilna (Vilnius University) (1784–87). In 1788, he became head librarian at the University of Mainz. Most of his scientific work during this time consisted of essays on botany and ethnology, but he also prefaced and translated many books about travel and exploration, including a German translation of Cook's diaries. (Full article...)

• 1793 – Birth of Henry Schoolcraft, American geographer and geologist (d. 1864)

• 1794 – Death of Marquis de Condorcet, French mathematician and philosopher (b. 1743)

• 1802 – Heinrich Wilhelm Matthäus Olbers discovers 2 Pallas, the second asteroid known to man

• 1874 – Death of Peter Andreas Hansen, Danish astronomer (b. 1795)

• 1905 – Birth of Marlin Perkins, American naturalist and television host (d. 1986)

• 1914 – Birth of Kenneth Richard Norris, Australian entomologist (d. 2003

• 1928 – Birth of Alexander Grothendieck, German mathematician

• 1930 – Birth of Jerome Isaac Friedman, American physicist, Nobel laureate

• 1946 – Cold War: The United States State Department releases the Acheson–Lilienthal Report, outlining a plan for the international control of nuclear power

• 1946 – Birth of Wubbo Ockels, Dutch physicist and astronaut

• 1982 – Death of William Giauque, Canadian chemist, Nobel laureate (b. 1895)