In school I was told that there were no spaces between words in Latin text, which is one reason translating it is so long a process. Perusing a few facsimiles of early documents, "no spaces" appears to be accurate.
Who invented placing a small space between words? And why isn't that person canonized, at least, or worshiped or ever even mentioned?

Thanks for the link, wwh, it'll be a big help doing crosswords.