Celtic Ireland. Dublin: Martin Lester, 1921. First Edition. Pp, xv, 182. With three maps at rear. Original green cloth, title in gilt to spine, upper cover ruled in blind. A fine bright copy.

A foundational work of revisionist scholarship that fundamentally challenged the prevailing colonial narrative of early Irish society.

Written by a leading figure of the Gaelic revival and a future revolutionary politician, the book argued that pre-Norman Ireland was not a primitive, tribal, or communal society, but a sophisticated one with private property, a hierarchical social order, and a remarkable literary culture.