Robert Hannah – författare

Time in Antiquity offers a detailed survey of the science of time and its measurement in the Greek and Roman worlds, including Babylon and Egypt where many of the first advances were made. Robert Hannah focuses on the physical aspects of time measurement, locating the means of measurement, and the astronomers who developed these mechanisms, within their scientific context for the first time. This is a unique contribution to the understanding of the ancient world and its thinking, and is of interest to classicists, historians of the ancient world and of science, philosophers, and anthropologists.

Time in Antiquity offers a detailed survey of the science of time and its measurement in the Greek and Roman worlds, including Babylon and Egypt where many of the first advances were made. Robert Hannah focuses on the physical aspects of time measurement, locating the means of measurement, and the astronomers who developed these mechanisms, within their scientific context for the first time. This is a unique contribution to the understanding of the ancient world and its thinking, and is of interest to classicists, historians of the ancient world and of science, philosophers, and anthropologists.

The smooth functioning of an ordered society depends on the possession of a means of regularising its activities over time. That means is a calendar, and its regularity is a function of how well it models the more or less regular movements of the celestial bodies - of the moon, the sun or the stars. Greek and Roman Calendars examines the ancient calendar as just such a time-piece, whose elements are readily described in astronomical and mathematical terms. The story of these calendars is one of a continuous struggle to maintain a correspondence with the regularity of the seasons and the sun, despite the fact that the calendars were usually based on the irregular moon. But on another, more human level, Greek and Roman Calendars steps beyond the merely mathematical and studies the calendar as a social instrument, which people used to organise their activities. It sets the calendars of the Greeks and Romans on a stage occupied by real people, who developed and lived with these time-pieces for a variety of purposes - agricultural, religious, political and economic.This is also a story of intersecting cultures, of Greeks with Greeks, of Greeks with Persians and Egyptians, and of Greeks with Romans, in which various calendaric traditions clashed or compromised.