Late antiquity was the time of transition from classical antiquity to the Middle Ages, generally spanning from the late 3rd century up to 6th or 7th century in Europe and adjacent areas bordering the Mediterranean Basin depending on location. Wikipedia

The period between classical antiquity and the Middle Ages Wikipedia Disambiguation

Period of transition from classical antiquity to the Middle Ages Wikidata

The period of European history marking the transition from the dominance of the Roman Empire (classical antiquity) to its successor realms of the Middle Ages, variously dated but usually from 284 CE (the nominal end of the crisis of the Third Century) to the 6th century (in the West) or mid-7th century (in the East). Wiktionary

The period between classical antiquity and the Middle Ages. Wiktionary (translation)