<Li> 1999: the Badger - in - the - bag game--modern mass - production commercial printing: a single word space between sentences </Li> <P> The 1999 example demonstrates the current convention for published work . The 1894 version demonstrates thin - spaced words but em - spaced sentences . It also demonstrates spaces around punctuation according to the rules above and equivalent to French typesetting today . </P> <P> With the advent of the typewriter in the late nineteenth century, typists adopted approximations of standard spacing practices to fit the limitations of the typewriter itself . French typists used a single space between sentences, consistent with the typeset French spacing technique, whereas English typists used a double space . </P> <Ul> <Li> French spacing inserted spaces around most punctuation marks, but single - spaced after sentences, colons, and semicolons . </Li> <Li> English spacing removed spaces around most punctuation marks, but double - spaced after sentences, colons, and semicolons . </Li> </Ul>

Where did two spaces after a period come from