The Marquette Map Isn’t a Hoax?

Marquette Map Carl Weber’s thesis that the Marquette Map is a hoax received a rough reception at a history conference last month: apparently, many historians aren’t buying his claims or his evidence, suggesting that they can be refuted “in about five minutes.” See the comments on this thread. As is often the case with academic controversies, this one goes ad hominem pretty fast, and I don’t pretend to know who’s on the side of right here. These comments were posted before I posted my original entry on this subject (but after I had done the research); I really ought to have incorporated the controversy into that post. Via MapHist.