Late Antiquity is a matter of perspective. The historiographical construct has expanded the concerns of ancient historians once exclusively focused on a “classical” Mediterranean—still their primary object of inquiry—to include not only later, post-classical centuries, but also Middle Eastern and, to a lesser extent African regions beyond the Roman frontiers. Nicola Di Cosmo and Michael Maas urge the extension of Late Antiquity’s geographical scope along an axis of steppes and highlands reaching from Constantinople to Chang’an. They do so, importantly, without seeking to disrupt the traditional constructs of Central Eurasian and East Asian historiographies. They rather introduce “Eurasian late antiquity” as an ancillary perspective, an interpretive instrument, to be employed to locate Rome and China like within transcontinental processes beyond their control—and often beyond their knowledge—that nevertheless shaped their respective destinies in the same centuries, circa 250-750. The contributors to the volume demonstrate the unambiguous utility of the instrument and set a historiographical agenda encompassing once disparate fields, in a manner reminiscent of the original Late Antiquity of the 1970s and 1980s.