Great Massacre is a historical event in Isaac Asimov's Foundation series.
Description[]
Great Massacre was an exemplary punishment inflicted upon the planet Siwenna following the suppression of Imperial Viceroy Wiscard's rebellion. The event occurred when the local population of Siwenna itself crushed Wiscard's uprising against the Galactic Empire, thereby preventing the Imperial Admiral from obtaining the glory and honors that would have accompanied a military victory over the rebels.
When the new Imperial Viceroy was appointed to govern the Normannic Sector, he took severe retaliatory measures against the Siwennian population. Acting out of resentment for being denied military glory, the Viceroy justified his actions by accusing the population of "having rebelled against an emperor-chosen viceroy," despite their actual role in suppressing the rebellion. This punishment resulted in massive casualties and devastation across Siwenna, effectively breaking the planet's political and economic power within the sector.
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