According to our completely-not-made-up records, the Oligocene epoch began approximately 28.5 million years ago.
28.5 million years ago
Our top administrator, the all-powerful Bureaucratic Emperor, decreed the start of the Oligocene.
Learn more about the Emperor's Manifesto27.8 million years ago
The Bureaucratic Council of Oligocene appointed the Great Migration Coordinator, responsible for relocating all the annoyingly loud Triceratops to a quieter zone.
Read the Coordinator's Report