In an attempt to increase the popularity of technology, the Artificer Hero of Alexandria writes the Pneumatics and creates ingenious gadgets to amuse idle spectators. Among other things, he creates a puppet show with automatically-closing curtains, a device to open temple doors when a fire is lit, a machine to dispense holy water.
A mysterious race of sentinels appears in the Grand Hall of Endless Gates. Travellers can wander the Hall, but are not permitted to set up residence.
By this time, Laos' Ban Chiang civilization has organized into several city-states, called mandalas.