Board Thread:Questions and Answers/@comment-10797017-20130618215950/@comment-5657895-20130627034259

The original 'Divisions' were the standard until what, 1000 years before cannon? That's when Yhwach said they all changed. Jushiro and Shunsui are 2000 years old, right? Or within that span, since they graduated from the Academy, which was certainly around back then, and became Captains right away.So I'd say Eijisai, Unohana, Shunsui, and Jushiro were four of them.