The term “uppercase” and “lowercase” in relation to alphabet letters was derived during the Victorian period within England. Advertising was highly prominent during the 19th century and used ubiquitously by businesses. The poster makers who would serve these businesses would use letters which were essentially stamps, dipped into thick, viscous, oily ink, specifically formulated this way to cling to and transfer cleanly onto coarse paper which was designed to be rough so that it could absorb as much ink as possible. Compositors, which was the name for this particular vocation during the 19th century, would keep their letters in a type case with large letters at the top and small letters at the bottom. The letters were kept in what was effectively a suitcase which did not close which is where the terms “uppercase” and “lowercase” originated from, as the letters were stored in either the upper portion of the type case or the lower portion of the type case. Each individual letter, a block referred to as a “sort”, was cast in metal and crafted backward to be arranged by hand by a skilled craftsperson. The layout of the case, with capital letters in the upper section and lowercase letters in the bottom, was highly pragmatic, as it positioned the most often used letters at the bottom closer to the person setting the typeset. Interestingly, this pragmatism influenced the English language as compositors not only set letters, they also selected when to use punctuation, spacing, and line breaks, all of which shaped how text was read and understood. Because movable type requires physical pieces for every character used, punctuation was to be used deliberately as too many commas, colons, em dashes etc. meant more time spent, more metal used, and more space being taken up upon the page. This physical constraint helped standardize English punctuation use and even influenced sentence structure, encouraging clarity and economy in writing which are themes that have endured into the 21st century
