To put you in context. In One Piece the Void Century was the time in where the bad guys became dominant.
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Void Century
The Void Century, also known as the Void in History (空白の歴史, Kūhaku no Rekishi?), is a century-long time period from 900 to 800 years prior to the current storyline with no recorded archaeological history.[1][2] For unknown reasons, research into this era is considered to be the worst crime...
