In his book Breve Historia del Urbanismo (Brief History of Urbanism), Fernando Chueca Goitia states that the medieval city appeared at the beginning of the 11th century and flourished only between the 12th and 13th centuries. According to the author, this growth was closely linked to the development of commerce that allowed permanent occupations, resulting in a city no longer composed mainly of travelers. In other words, the bourgeoisie was formed thanks to the most diverse activities - craftsmen, tradesmen, blacksmiths, longshoremen - which stimulated the development of the medieval city.
