What is Coligny calendar?
[[File:Coligny.jpg|thumb|right|All the fragments]] [[File:Coligny-closeup.jpg|thumb|right|One fragment, enlarged]] The '''Coligny calendar''' is a [[celt]]ic [[calendar]] from [[roman empire|roman]] times. It was found near [[Lyon]] in 1897. It was made of [[bronze]], but today, only fragments remain. Studies found that these fragments made up a [[Gaul|gallic]] calendar, which had been created for a period of five years. The calendar indicates both the time of the [[solar year]] and the [[moon phase|phase]] of the [[moon]], which is generally called a [[lunisolar calendar]]. It was engraved on a [[bronze]] tablet, preserved in 73 fragments, that originally was 1.48 m wide and 0.9 m high (Lambert p.&nbsp;111) or approximately {{convert|5|ft|m}} wide by 3½ feet in height.<ref>{{Cite web |url=http://www.roman-britain.co.uk//classical-references/coligny/ |title=Coligny Calendar}}</ref> Based on the style of lettering and the accompanying objects, it probably dates to the end of the 2nd century AD.<ref>Duval, P.M. and Pinault, G., Recueil des inscriptions gauloises, Tome 3: Les Calendriers (Coligny, Villards d'Heria), CNRS, Paris, 1986, pp. 35-37.</ref><ref>Lambert, Pierre-Yves, La langue gauloise, Editions Errance, 2nd edition, Paris, 2003, p.111</ref> It is written in Latin inscriptional capitals and is in the [[Gaulish language]] (Duval & Pinault). The restored tablet contains sixteen vertical columns, with 62 months distributed over five years. The French archaeologist, J. Monard, speculated that it was recorded by [[druid]]s wishing to preserve their tradition of timekeeping in a time when the [[Julian calendar]] was being imposed throughout the [[Roman Empire]]. However, the general form of the calendar suggests the public peg calendars (or ''[[parapegma]]ta'') found throughout the Greek and Roman world (Lehoux pp.&nbsp;63–65). A similar calendar found nearby at Villards d'Heria ({{coord|46|25|N|5|44|E|}}) is only preserved in eight small fragments. It is now preserved in the ''Musée d'Archéologie du Jura'' a