The A19 is a major road in England running approximately parallel to and east of the A1 road, although the two roads meet at the northern end of the A19, the two roads originally met at the southern end of the A19 in Doncaster but the old route of the A1 was changed to the A638. From Sunderland northwards, the route was formerly the A108. In the past the route was known as the East of Snaith-York-Thirsk-Stockton-on-Tees-Sunderland Trunk Road.