Complex sentence: However, this volume remained unpublished until the seventeenth century, but circulated in manuscript form between 1488 and 1492 among humanists in Brescia, Verona, and Venice.
Split into simpler sentences: However, this volume remained unpublished until the seventeenth century. The manuscript circulated from 1488 to 1492 among humanists in Brescia, Verona, and Venice.