On this Day in History

On this Day in History in 1882: Wood block alarm invented, when alarm rang, it dropped 20 wood blocks.
 
On this Day in History in 1790: Revenue Marine Service (US Coast Guard) created.
 
On this Day in History in 1910: The highest mountain in North America, Alaska’s Mt McKinley climbed.
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On this Day in History

On this Day in History in 239 B.C.E.: 1st recorded perihelion passage of Halley’s Comet.
 
On this Day in History in 1964: “Jeopardy” debuted on NBC-TV.
 
On this Day in History in 1867: US buys Alaska from Russia for $7,200,000 (2 cents an acre – Seward’s Folly).