A Timeline for Horology
I thought it might be interesting to draw up a timeline for the developments in horology and time. I've mined some of the better information from Wikipedia to put together this snapshot of horological inventions and discoveries. 12,000 - 30,000 BCE (BC) - Artifacts from the Paleolithic that suggest measurements of the moon's motion. From Wikipedia : Lunar calendars were among the first to appear, with all years having twelve lunar months (approximately 354 days). Without intercalation to add days or months to some years, seasons quickly drift in a calendar based solely on twelve lunar months. Lunisolar calendars have a thirteenth month added to some years to make up for the difference between a full year (now known to be about 365.24 days) and a year of just twelve lunar months. The numbers twelve and thirteen came to feature prominently in many cultures, at least partly due to this relationship of months to years. 2600 - 2400 BCE - Stonehenge 3 II From Wikipedia : The timbe...