The fraction slash is used between two numbers to indicate a fraction or ratio. Such formatting developed as a way to write the horizontal fraction bar on a single line of text. It is first attested in England and Mexico in the 18th century. This notation is known as an online, solidus, or shilling fraction. Nowadays fractions, unlike inline division, are often given using smaller numbers, superscript, and subscript (e.g., 23⁄43). This notation is responsible for the current form of the percent , permille , and permyriad signs, developed from the horizontal form which represented an early modern corruption of an Italian abbreviation of "per cento".