Isotopic analysis of crustal zircons indicates that approximately two-thirds of today’s crust is composed of Archean material. This is complemented by findings of Archean sub-continental lithospheric mantle beneath many younger crustal domains. Together, these findings suggest ancient lithosphere may be a far more important factor in the evolution of continents than generally perceived. We invite submissions that examine the presence, role and influence of Archean lithosphere on post-Archean terranes.