Manvantara—the duration of each Manu' s reignPrabhupada ›Glossary›-M-›Manvantara-the duration of Manvantara-the duration of each Manu' s reign Link to this page: https://prabhupadabooks.com/glossary/m/manvantara-the-duration-of-each-manu-s-reign Previous: Manvantara-avataras-the incarnations of the Supreme Lord who appear during the reign of each Manu (306,720,000 years); used as a standard division of history. Next: Marakata-mani-an emerald.