U.S. States
On this day: Pittsburgh Civic Arena Opened
On September 17, 1961, the world's first retractable dome stadium opened in Pittsburgh, PA. Originally built as an opera venue, it also hosted boxing, concerts and other entertainment events - with the roof open whenever the weather permitted. In 1967…
On this day: Ground was Broken for The Pentagon
Mid way through WWII, on this day in 1941, ground was broken for the Pentagon, the headquarters for the US Department of Defense. Thirteen years ago it was targeted as part of the 9/11 attacks and a section of the…
Transporter Bridges
In the late 19th and early 20th centuries, almost two dozen transporter bridges were built around the world. They feature a high gantry - tall enough to allow ships to pass below - carrying a gondola to transport foot passengers…
On this day: Google was Incorporated
Google (a company that you may have heard us mention on this site) was formally incorporated on this day in 1998, making the transition from Sergey Brin and Larry Page's research project to an official business. (Although many people prefer…
On this day: Mount Washington Cog Railway Opened
All Aboard! On this day 145 years ago, the cog railway opened on Mount Washington, allowing an easy route for visitors to the top of the tallest peak in the Eastern US. The cog system was the first to be…
On this day: MLK’s I have a Dream Speech
On August 28, 1963, Martin Luther King Jr gave his famous I Have a Dream speech. Standing on the steps of the Lincoln Memorial, King addressed an immense crowd of a quarter of a million civil rights supporters. It has…
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