Caesar http://redriverradio.org en McDonald: On the history of Tax Day http://redriverradio.org/post/mcdonald-history-tax-day <p>Commentator Archie McDonald treats listeners to a history lesson on how&nbsp;the IRS filing&nbsp;deadline came to&nbsp;be.</p> Fri, 13 Apr 2012 14:45:31 +0000 Archie McDonald, Ph.D. 9724 at http://redriverradio.org McDonald: On the history of Tax Day McDonald: A leapin' lizards leap year http://redriverradio.org/post/mcdonald-leapin-lizards-leap-year <p>Commentator Archie McDonald&nbsp;explains&nbsp;leap year: a&nbsp;mathematical and historical lesson in&nbsp;one.</p> Fri, 24 Feb 2012 17:35:52 +0000 Archie McDonald, Ph.D. 7282 at http://redriverradio.org McDonald: A leapin' lizards leap year