answers: 1825
context: which contains heritage railway vehicles. The site includes Timothy Hackworth's house, the Soho Workshop and a former coal drops, which are listed buildings. The heritage Weardale Railway runs special services over its line from Bishop Auckland to Eastgate-in-Weardale. Stockton and Darlington Railway The Stockton and Darlington Railway (S&DR) was a railway company that operated in north-east England from 1825 to 1863. The world's first public railway to use steam locomotives, its first line connected collieries near Shildon with Stockton-on-Tees and Darlington, and was officially opened on 27 September 1825. The movement of coal to ships rapidly became a lucrative business, </s> cast iron bridge on masonry piers in 1841. After three years and an expenditure of £122,000 (equivalent to £9.65m at 2011 prices), the formal opening of the new dock took place on 12 May 1842. The S&DR provided most of the finance, and the dock was absorbed by the company in 1849. The GNER had authority for a railway from York to Newcastle; it opened to Darlington in 1841 having spent all of its authorised capital and could not start work on the extension to Newcastle. At the time Parliament was considering the route of a railway between England and </s> director and Quaker, visited his brother Joseph in mid-1859 at his house by the sea at Marske-by-the-Sea. Returning late for dinner, he explained he had walked to Saltburn, then a group of fisherman's cottages, where he had had a "sort of prophetic vision" of a town with gardens. With other S&DR directors he planned the town, with gardens and Zetland Hotel by the station, and bought a house at 5 Britannia Terrace, where he stayed for a few weeks every summer. The extension opened in 1861, a station on the through line replacing the terminus at Redcar. A railway to
question: when did the stockton to darlington railway open