Galactic Empire (Asimov)

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Galactic Empire
Foundation series, Galactic Empire series, and Robot series location
The Spaceship and Sun, emblem of the Empire
At its height, the Galactic Empire spanned the entire Milky Way galaxy.
Created by	Isaac Asimov
Genre	Science fiction space opera
In-universe information
Type	Empire
Ruler	Emperor
Locations	Aurora, Solaria, Terminus, Trantor (capital)
Characters	Arkady Darell, Hari Seldon, R. Daneel Olivaw, The Mule

The Galactic Empire is an interstellar empire featured in Isaac Asimov's Robot, Galactic Empire, and Foundation series. The Empire is spread across the Milky Way galaxy and consists of almost 25 million planets^{[1] [2]} settled exclusively by humans. For over 12 millennia the seat of imperial authority was located on the ecumenopolis of Trantor, whose population exceeded 40 billion, ^[3] until it was sacked in the year 12,328. The official symbol of the empire is the Spaceship-and-Sun. Cleon II was the last Emperor to hold significant authority.^[4] The fall of the empire, modelled on the fall of the Roman Empire, is the subject of many of Asimov's novels.