Shimada receives a short treatment partly because the book used for this instalment has little to say about him. Only one relevant book is identified in the closing remarks. This limits the depth of the biography offered in the video. It does not establish that the wider surviving biographical record is equally thin.
Notable Point · 14:33-14:55
The limited book source behind this account of Shimada
Even the specialist book used for this video contains little material on Shimada, which limits how detailed the biography can be.