On November 13, long distance runners from all over the world converged on Athens for the 29th Athens Classic Marathon. This old arithmetically-challenged emperor assumed that it was organized to celebrate the 2,500th anniversary (25th centenary) of the Battle of Marathon, fought in 490 BC. However, the official logo of the Association of International Marathons and Distance Races (pictured here) makes it clear that they considered 2010 to be the centenary. So who’s correct?
(Via The Life of Antoninus Pius.)