The World’s First Tweet

March 21, 2006

Twitter co-founder Jack Dorsey sends the world’s first (non-automated) tweet:

“just setting up my twttr”

Soon to be followed by the just as engrossing

“inviting coworkers”

A note to future entrepreneurs: when doing the “first” of anything, it may be for posterity so try to be interesting. Kthnx.

Launch of Ranger 9

March 21, 1965

NASA Launches Ranger 9, the last of the Ranger series of unmanned lunar exploratory spacecraft. Ranger 9 was the first moon probe to point its cameras directly in the direction of its travel, capturing 5,814 detailed images of the moon’s surface into which it would crash land almost 3 days later. It also sent back video images which were broadcast on live TV. The Ranger series was the precursor to the Apollo Moon landing program.