“Memoirs of Extraordinary Popular Delusions and the Madness of Crowds”
http://www.gutenberg.org/files/24518/24518-h/24518-h.htm
by Charles Mackay (1852)
See:
“Relics”
http://www.gutenberg.org/files/24518/24518-h/dvii.html#relics
Thanks for the links, I’ve bookmarked them for later reading. There’s a lot there and very interesting.