by 1851, and to 157,000 by 1901. The town became a borough in 1877, incorporating within it Oxton and Tranmere. The improved communications also allowed Liverpool merchants to buy up and develop large estates on the Wirral. James Atherton and William Rowson developed the resort of New Brighton, and new estates for the gentry were also built at Egremont, Oxton, Claughton and Rock Ferry. Arrowe Hall was built for the Shaw family in 1835. In the mid-19th century docks were established at Birkenhead and in the Wallasey Pool, and continuing development for a wide range of industry both there and along the banks of the Mersey. The New Chester Road was opened in 1833. The Wirral's first railway was built in 1840, planned by George Stephenson and connecting Birkenhead with Chester. In 1852 Price's Patent Candle Company built a factory and model village at Bromborough. This was followed in 1888 by William Lever's establishment of the much larger Sunlight soap factory and Port Sunlight garden village, designed to house its employees and provide them with a benign environment. The opening of the Manchester Ship Canal in 1894, with its outfall at Eastham, led to further port-side and industrial development beside the Mersey at Ellesmere Port. In 1886, the Mersey Railway tunnel was opened, linking the Wirral and Liverpool. This led to the further rapid growth of suburbs in the Wirral, particularly in Wallasey, Hoylake and West Kirby, and later Bebington and Heswall. Wallasey's population grew to over 53,000 by 1901, and the town also achieved borough status soon after the turn of the century. The 20th century The dockland areas of Wallasey and Birkenhead continued to develop and prosper in the first half of the century, specialising in trade with Africa and the Far East. A host of other port-related industries then came into existence, such as flour milling, tanning, edible oil refining and the manufacture of paint and rubber-based products. In 1922 a new oil dock was built at Stanlow near Ellesmere Port, and in 1934 oil refining began there. A large chemical and oil refining complex still dominates the area. In 1929, the 3rd World Scout Jamboree was held at Arrowe Park and this celebrated the 21st Anniversary of the publication of Scouting for Boys. Thirty-five countries were represented by 30,000 Scouts, plus another 10,000 British Scouts who took the opportunity to camp in the vicinity. The rail