From publisher blurb: Visit Era! Era is a world where the inhabitants have chosen to forsake modern conveniences and live as if they were in several periods of Earth's history. Joust with knights in Saint Albans! Board a sailing ship in Nelson! Enjoy a saloon in New Liberty! Quick Worlds 18: Era has been designed with the busy Referee in mind. Era is meant to be an interesting and exciting place that can be easily added into any existing Traveller campaign. And short of ideas? We've added several adventure hooks to get your creative juices flowing and allow you to make a visit to Era one your characters will remember.