1858 – The west end of the first transatlantic cable was completed when the ship Niagara anchored at the Newfoundland coast having laid 1,016 miles of telegraph cable.
http://www.history.com/this-day-in-history/first-transatlantic-telegraph-cable-completed
1914 – The American Traffic Signal Co. installed their first electric traffic light at East 105th street and Euclid Avenue in Cleveland, Ohio.
http://allthingsclevelandohio.blogspot.com/2008/03/cleveland-birthplace-of-first-electric.html
1921 – The first radio broadcast of a baseball game happened on KDKA from Pittsburgh’s Forbes Field. Harold W. Arlin announced the game between the Pittsburgh Pirates and the Philadelphia Phillies.
http://www.digitaldeliftp.com/Recommendations/KDKAFirst1921.htm
2011 – The Juno space probe launched on a mission to explore Jupiter.
https://www.nasa.gov/mission_pages/juno/overview/index.html
2012 – The Mars Science Laboratory, known as the Curiosity Rover successfully landed on the surface of Mars in one of the most complicated automated landings ever, involving a sky crane.
2014 – Justin.TV announced its closure. It had started as a lifecasting channel for Justin Kan and spawned the massively successful Twitch video game streaming channel.
Read Tom’s science fiction and other fiction books at Merritt’s Books site.