Codex: Chaos Space Marines (2017), p15 — M40-M41 Age of Apotheosis

The Vaxhallian Genocides

The Chaos renegades known as the Purge vent their hatred of all living things upon the verdant Imperial world of Vaxhallia. The planet's inhabitants are soon riddled with consumptive disease and crippled by famine. Over the course of a single month, the Purge engineer the deaths of no fewer than fourteen billion Imperial citizens.