The Sundial in the Temple of Apollo at Pompeii

The Sundial in the Temple of Apollo at Pompeii.

Located next to the stair of the Temple of Apollo, west from the Forum. The Romans had many types of sundials. The famous architect Vitruvius, on the 9th book of the De Architectura (‘The Ten Books of Architecture’) explains the many variations along with its inventors: in the image, we can see an example of an ‘hemicyclium’ sundial invented, according to Vitruvius, by Berossus the Chaldean (De Arch. 9.8.1).