Historically, Liverpool was a part of Lancashire. The city's urbanisation and expansion were largely brought about by the city's status as a major port. By the 18th century, trade from the West Indies, Ireland and mainland Europe, coupled with close links with the Atlantic slave trade, furthered the economic expansion of Liverpool. By the early 19th century, 40% of the world's trade passed through Liverpool's docks, contributing to Liverpool's rise as a major city. Liverpool is also well known for its inventions and innovations, particularly in terms of infrastructure, transportation, general construction, and in the fields of public health and social reform. Railways, ferries and the skyscraper were all pioneered in the city, together with the first societies for animal and child protection, the first schools for the blind, for working-men, and for girls. Inhabitants of Liverpool are referred to as Liverpudlians but are alsoSee More