Holland is a region in the western part of the Netherlands. The term Holland is also frequently used as a pars pro toto to refer to the whole of the Netherlands. This usage is generally accepted but disliked by part of the Dutch population, especially in the other parts of the Netherlands.
From the 10th to the 16th century, Holland proper was a unified political region, a county ruled by the Counts of Holland. By the 17th century, Holland had risen to become a maritime and economic power, dominating the other provinces of the Dutch Republic.
Today, the former County of Holland consists of the two Dutch provinces of North Holland and South Holland, which together include the Netherlands' three largest cities: the country capital Amsterdam; seat of government The Hague; and Rotterdam, home of Europe's largest port.