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	Sept. 2024:	Added Meet E.W. Fritchley to HOC
	Aug. 2024:	Added Sbernadori's aerophotographical slide rule to HOC
	July 2024:	Added The Watkins exposure meter to HOC
	May 2024:	Added The ingenious Ifach adder to HOC.
	April 2024:	Added Building a Roubo Woodworking Workbench to Miscellany.
	Jan. 2024:	Added The weird Logarex Typ-01 to HOC.
	Jan. 2024:	Added The Silver Jubilee Sinclair Sovereign to Miscellany.
	Nov. 2023:	Added A medley of Homebrew Projects to Miscellany.
	Nov. 2023:	Added Troncet's OTHER calculator to HOC.
	Oct. 2023:	Added Numeri Mundum Regunt to HOC.
	Oct. 2023:	Added The calculation of MADness to HOC.
	Aug. 2023:	Added Chairman Mao's guidance to HOC.
	April 2023:	Added Hoffman's airplane calculator to HOC.
	Nov. 2022:	Added The Professor’s calculator to HOC.
	Oct. 2022:	Added The Jeffers calculator to HOC.
	April 2022:	Added The Pose-Marre pen slide rule to HOC.
	Mar. 2022:	Added Bloch's Gewichtschnellrechner to HOC.
	June 2021:	Added The Ross Precision Computer to HOC.
	March 2021:	Added Torsion wire delay line to HOC.
	Jan. 2021:	Added Washington Sabatini’s impressive calculator to HOC.
	Nov. 2020:	Added Slide rules for a new century to HOC.
	Oct. 2020:	Added The Genaille-Lucas financial rods to HOC.
	June 2020:	Added Martin's huge multiplication table to HOC.
	May 2020:	Added Lalanne's glass slide rule to HOC.
	Feb. 2020:	Added Jacob Zedak’s wooden slide rule to HOC.
	Feb. 2020:	Added The Data Scaler Proportional Rule to HOC.
	Dec. 2019:	Added The Controller sliderule family to HOC.
	Oct. 2019:	Added Victorian Virtual Reality to Miscellany.
	May 2019:	Added Pretty as a picture! to HOC.
	Jan. 2019:	Added Badalamenti’s factorization slide rule to HOC.
	Feb. 2018:	Added A homebrew Single Sideband transmitter to Miscellany.
	Dec. 2017:	Added Meet a Mathematical Inventor! to HOC.
	May 2017:	Added Lieutenant Brenske's Marsch-Zirkel to HOC.
	Dec. 2016:	Added A slide rule with a Wow! to HOC.
	April 2016:	Added A calculator hidden in a book to HOC.
	March 2015:	Added Cloning a Vibroplex bug to Miscellany.
	Nov. 2014:	Added Wynne-Roberts' hydraulic calculator to HOC.
	Sept. 2014:	Added Three "pencil" slide rules to HOC.
	Feb. 2014:	Added Five Intel chips that changed the world to HOC.
	Dec. 2013:	Added Heroes and Barbarians to Miscellany.
	April 2013:	Added The small Small Calculator to HOC.
	Dec. 2012:	Added A lovely gauging slide rule to HOC.
	Oct. 2012:	Added Elisha Kally’s water flow calculator to HOC.
	Aug. 2012:	Added How the Slide Rule got its Cursor to HOC.
	Nov. 2011:	Added Yiddish radio geeks of a bygone world to Miscellany.
	Oct. 2011:	Added An unusual form factor to HOC.
	March 2011:	Added Leib Stern's slide rule to HOC.
	July 2010:	Added Krüger's calculating pencil case to HOC.
	May 2010:	Added Gunter's rule to HOC.
	Dec. 2009:	Added Webb's Adder to HOC.
	Oct. 2009:	Launched the Challenge Information Overload blog.
	July 2009:	Added Biorhythmic calculators to HOC.
	May 2009:	Added Oh, no! Can Tesseract save the plane? to Miscellany.
	April 2009:	Added Humanity's victory over rust! to Miscellany.
	March 2009:	Expanded the site to include my new business activity.
	Jan. 2009:	Added Michaelis's concrete calculator to HOC.
	Nov. 2008:	Added The Ken+Add adder to HOC.
	Sept. 2008:	Added Piercing the unknown to HOC.
	Aug. 2008:	Added The real thing, in cross-section to Miscellany.
	July 2008:	Added Hand wired memory! to HOC.
	May 2008:	Added Kaufmann's wonderful Posographe to HOC.
	April 2008:	Added Farmar's profit calculator to HOC.
	March 2008:	Added Prey to Oblivion to Miscellany.
	Feb. 2008:	Launched the Commonsense Design blog.
	Jan. 2008:	Added Locke's "pocket" adder to HOC.
	Dec. 2007:	Added Black Gem to HOC.
	Nov. 2007:	Added A virtual Cabinet of Curiosities to Miscellany.
	Sept. 2007:	Added The Xeroxed calculator to HOC.
	August 2007:	Added Just a couple of relays to HOC.
	July 2007:	Added Blue Velvet to HOC.
		Added Beautiful Digits to HOC.
	June 2007:	Added It's a wonderful Life! (and the Goodlife program) to Miscellany.
	April 2007:	Added The Bare Bones Hemmi 22 to HOC.
	March 2007:	Added a scan of the Spirule instruction Manual to HOC.
		Added Joe Gerber's pajamas to HOC.
	Feb. 2007:	Added Thacher's monster slide rule to HOC.
	Jan. 2007:	Added Ingenious simplicity to Miscellany.
	Dec. 2006:	Added A Cattle Calculator to HOC.
	Nov. 2006:	Added Psychrometric slide rule to HOC.
	Oct. 2006:	Added Stephens' Supremathic to HOC.
	Sept. 2006:	Added Illustrated Natural Philosophy to Miscellany.
	August 2006:	Added El Calculador! to HOC.
	July 2006:	Added "Iron Felix" meets the Odhner calculator to HOC.
	June 2006:	Added Glass and Paper ?!? to HOC.
	May 2006:	Added The perceptive art of Giuseppe Novello to Miscellany.
	April 2006:	Added The incredible Curta to HOC.
	March 2006:	Added Homemade hydrological slide rule to HOC.
		Added More on Ropp's commercial calculator to HOC.
	Feb. 2006:	Added Real Bookmarks from True Favorites to Miscellany.
	Dec. 2005:	The site goes live. Everything's new!