The Stockton and Darlington Railway opened in 1825.
Its official opening took place on 27 September 1825 in County Durham. The railway was built mainly to carry coal from inland collieries to the River Tees and the port at Stockton. George Stephenson served as engineer, assisted by his son Robert, and the line used a combination of steam locomotives, horse power, and gravity working.
On opening day, Locomotion No. 1 hauled a train of coal wagons, passenger coaches, and invited guests. The journey demonstrated that steam locomotives could operate a public railway, even though the line’s early service was primarily focused on freight rather than passengers.
The railway was not the world’s first railway or the first line to carry passengers. Its importance was that it became the first public railway to use steam locomotives successfully on a large scale. Passenger services began soon afterward, on 10 October 1825, initially using a horse-drawn coach. The line’s success helped inspire the expansion of railway networks across Britain and beyond.