SQUARE CAPITALS
Probably the earliest Latin majuscule writing is that known as square capitals. These seem to be modelled on the same type of letter that was used for the fine inscriptions. Although the general opinion is that these are the earliest form, there is very little square capital writing in existence. The earliest specimen known has been attributed to the end of the fourth century, although it is thought that this form of writing had been in use some centuries before this. It was in use until the fourth or fifth century. There is not the slightest doubt that writing, when these letters were used, must have been comparatively slow work.