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Gnomon Chronicles is a work of fiction and nonfiction by Karl Jones with stories and illustrations by Greg Nesbitt (among others).
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On This Day in History: June 1
1633: Astronomer and academic Geminiano Montanari born. He will make the observation that Algol in the constellation of Perseus varies in brightness.
1849: Territorial Governor Alexander Ramsey declared the Territory of Minnesota officially established.
1867: Mathematician Karl Georg Christian von Staudt dies. He used synthetic geometry to provide a foundation for arithmetic.
1895: Havelock and Herman Hollerith announce plan to collaborate on new data exchange protocol.
1890: The United States Census Bureau begins using Herman Hollerith's tabulating machine to count census returns.
![1944: First successful run of the improved Colossus Mark 2 computer], just in time for the Normandy landings on D-Day. Colossus Mark 2 used shift registers to quintuple the processing speed.](/w/images/thumb/4/48/Colossus_Mark_2.jpg/120px-Colossus_Mark_2.jpg)
1944: First successful run of the improved Colossus Mark 2 computer], just in time for the Normandy landings on D-Day. Colossus Mark 2 used shift registers to quintuple the processing speed.