Dinadon

Dinadon is a planet in the Ender system, which was the capital of the Terran Federation and later Terran Empire.

Before the Fall
Nothing is truly known about Dinadon before the Fall of Man, though their is evidence that the planet was habited and possibly even not too dissimilar to its later form.

Many of the lowest levels of Dinadon house ancient fortresses and other structures.

Empire of Dinadon
In 3246 PF, the Empire of Dinadon was formed with Dinadon at its centre. At its peak Dinadon governed around 150 worlds, and this governance was absolute.

During this time the Planet was known as Dinædin.

At some point, the forces of the Terran Federation, causing the Dinadonian War, which quickly ended in the Federations favour.

Terran Federation
Under the Federation Dinadon grew quickly. It is unknown when it became the Capital but by the time it did, it was the most powerful planet in the Federation.

Federate Ring
Senate Tower

Imperial Palace

Appearances
Arms of Orion: The Great War (First Appearance)

The Stellar Engine (Mentioned Only)