1826, James Fenimore Cooper, The Last of the Mohicans
A hundred earthen dwellings stood on the margin of the lake […]
(especially of pottery) Made of clay.
1589, Richard Hakluyt, The Principal Navigations, Voyages, Traffiques, and Discoveries of The English Nation
... the Godfathers and Godmothers follow into the midst of the Church, where there is a small table ready set, and on it an earthen pot ful of warme water, […]