What is time? When did we first use it? Does it always work? How do animals tell time? A fun and fascinating look at time from the first calendars and clocks to

"If you lie awake worrying about the overnight transition from December 31, 1 b.c., to January 1, a.d. 1 (there is no year zero), then you will enjoy Duncan Ste

Time is the crucial ingredient in history, and yet historians rarely talk about time as such. These essays offer new insight into the development of modern conc

Travel through time with the maestros as they explore the amazing history of timekeeping! Did you know that there is more than one calendar? While the most comm

Calendars in the Dead Sea Scrolls explores the evidence about calendars in the Dead Sea Scrolls, the Hebrew Bible and other ancient Jewish texts.