    tadcaster is a market town and civil parish in the selby district of north yorkshire, england. it is situated approximately  east from the great north road,  north-east from leeds, and  south-west from york. it is the last town on the river wharfe before it joins the river ouse about  downstream. it is part of the shire county of north yorkshire, though historically split between the ainsty of york and the west riding of yorkshire. the town is twinned with saint chÃ©ly d'apcher in france.  thumb|right|tadcaster social club    thumb|right|church of st mary the virgin. thumb|right|tadcaster viaduct. ==history== ===roman===  tadcaster was founded by the romans, who named it calcaria from the latin word for lime, reflecting the importance of the area's limestone geology as a natural resource for quarrying, an industry which continues today and has contributed to many notable buildings including york minster. calcaria was an important staging post on the road to eboracum (york), which grew up at the river crossing. ===anglo-saxon and medieval=== the suffix of the anglo-saxon name tadcaster is derived from the borrowed latin word castra meaning 'fort', although the angles and saxons used it for any walled roman settlement. tadcaster is mentioned in the anglo-saxon chronicle as the pla
Civil_parishes_in_North_Yorkshire Market_towns_in_North_Yorkshire Populated_places_established_in_the_1st_millennium Post_towns_in_the_LS_postcode_area Selby_(district) Towns_in_North_Yorkshire