Today in gypsum history
From the Washington Post’s “Today in History” column:
In 1870, the “Cardiff Giant,” supposedly the petrified remains of a human discovered in Cardiff, N.Y., was revealed to be nothing more than carved gypsum.
Notes on the Rock Nobody Knows
From the Washington Post’s “Today in History” column:
In 1870, the “Cardiff Giant,” supposedly the petrified remains of a human discovered in Cardiff, N.Y., was revealed to be nothing more than carved gypsum.