Generally, all papers are of these two sorts, whether national or provincial, popular or quality. There is no historical significance in the sizes. Most early newspapers were half size; later broadsheet became popular. In recent decades the tabloid size has come to be associated with the popular national papers, perhaps because it is easier to hold for people hurrying to work using public transport, or with little reading time. Other reasons can be adduced. The tabloid size lends itself to the sort of bold poster-style layout pioneered by the Daily Mirror, which has strongly influenced the layout of other tabloids. It also lends itself to cheaper full page advertising and more regular salus (single) positions, which are thought by the marketing side of newspapers to please advertisers and therefore to help maximize advertising income. Two national papers which might be termed 'middle of the road', the Daily Express and Daily Mail (with strong B and C readership) have also changed to tabloid size in recent decades, while Today, launched in 1986 as a colour daily, and closed in 1995, adopted a deeper tabloid format.