Facts about the Em-Dash
- 06
Apple's Pages word processor renders the em-dash at precisely 1.2 em widths on standard displays, differing from the 1 em default in Microsoft Word and creating inconsistent document spacing across platforms.
- 05
Screenwriter David Mamet's 2001 dialogue manual recommends the em-dash over periods for overlapping speech in scripts, citing its visual clarity for actors reading character interruptions.
- 04
Victorian novelist George Eliot's manuscripts reveal she employed the em-dash approximately 340 times per 10,000 words, establishing a stylistic signature that influenced 19th-century literary punctuation norms.
- 03
In 1988, The Chicago Manual of Style officially distinguished the em-dash from the en-dash and hyphen, establishing three separate punctuation marks with specific grammatical functions in American English typography.
- 02
Most word processors default the em-dash to 1 em width, but traditional metal typesetting used a dash measuring exactly the width of the capital letter M in any given font size.
- 01
Typist James Compton used the em-dash 2,662 times across his 1987 technical manual, earning recognition in Guinness World Records for highest dash frequency in professional writing.