Size: Confidential, known inhabited area in excess of 10,000 square kilometers.
Population: 12 million humans, 400,000 cartogids (estimated).
Capital: Lengle.
History: It is unknown when Lengle was first discovered as much of its history is still considered confidential. But by at least 1905, several governments and societies had established embassies there. Following the first Ebullic War, a group of nations established the modern Lengle, beginning what was originally known as the “Great Experiment.”  Lengle currently governs fifty worlds, encompassing 30 billion people.
Famous Figures: Amelia Tr’watson (first council president), Sunafi Gould (council president during the uprisings of the 1970s), and Twilight Sparkle.

SPOILER ALERT FROM BOOK TWO OF THE CORDELIAN CHRONICLES:

Darl and Menlo sat on a stone bench on a small patio in the ebullus of Lengle, a world dedicated to the business of governing. Over fifty worlds were administrated by Lengle, either directly or indirectly. Most of the thirty billion people on those worlds knew little of Lengle, or of the decisions made there about their daily lives. And most of the bureaucrats of Lengle knew little about those people as they made their decisions.