A conversation with Roderick Beaton (King's College London, emeritus) on his new book The Greeks: A Global History (Basic Books 2021). We discuss different ways to define who "the Greeks" were and are (in Byzantium Graikos meant a "Greek-speaker"); the diversity of groups that make up this story; how Byzantium can be featured in a diachronic history of Greek-speakers without being overlooked in favor of the ancients and moderns (as tends often to happen); and what might tie these Greeks together in a way that doesn't quite work for, say, "the English-speaking peoples."