The tragedy of Ohara is one of the most significant incidents in the One Piece series. It took place 22 years prior to the current timeline when the scholars of Ohara managed to successfully decipher the Poneglyphs. The scholars, led by Clover, were shocked to learn about the existence of an ancient kingdom, that existed many centuries ago. Before the scholars got an opportunity to share their findings, they were stopped by the World Government.