Twitter:

On this day in 1963, “instant replay” made its TV debut during an American Army-Navy football game. https://en.wikipedia.org/wiki/Instant_replay

Facebook:

On this day in 1972, as the Apollo 17 moon mission was launched, the crew took the photograph known as The Blue Marble. https://en.wikipedia.org/wiki/The_Blue_Marble

Twitter:

On this day in 1972, Apollo 17 astronauts took the photo known as The Blue Marble. https://en.wikipedia.org/wiki/The_Blue_Marble PHOTO

Twitter:

Computer scientist Manal al-Sharif helped start a women's right-to-drive campaign in 2011 in Saudi Arabia. https://en.wikipedia.org/wiki/Manal_al-Sharif

Facebook:

Computer scientist Manal al-Sharif helped start a women's right-to-drive campaign in 2011 in Saudi Arabia, the only nation in the world where women are not allowed to drive. https://en.wikipedia.org/wiki/Manal_al-Sharif

Twitter:

"The large print giveth and the small print taketh away." - Singer-songwriter Tom Waits, born this day in 1949. https://en.wikiquote.org/wiki/Tom_Waits

Twitter (@wikimedia):

Israel’s Tel Aviv University now offers a course called “Wikipedia: Skills for producing and consuming knowledge.” https://blog.wikimedia.org/2015/12/03/tel-aviv-new-wikipedia-course/

Twitter and Facebook:

Wikipedians around the world are working together to update articles on terrorist attacks in real-time. https://blog.wikimedia.org/2015/12/04/wikipedia-editors-cover-terror/

Twitter:

Born this day in 1956, American basketball player Larry Bird, 12-time NBA All-Star and 3-time league MVP. https://en.wikipedia.org/wiki/Larry_Bird