Does anyone know a) the origins, or b) the name of the convention of replacing dates or place names in 18th / 19th century novels with a horizontal line? I'm not asking for the reasons authors did this, (various answers are given here), but as it were the genealogy of its use.
An example, from Laurence Sterne's marvellous Tristram Shandy:
My father, you must know, who was originally a Turky merchant, but had left off business for some years, in order to retire to, and die upon, his paternal estate in the county of ------ , was, I believe, one of the most regular men in every thing he did, whether 'twas matter of business, or matter of amusement, that ever lived.
[EDIT:] The word is not "redaction", as some have suggested (see the comment below and those on the linked question above). Redaction means (quoting the OED, 'redaction', section 1.b):
b. The action or process of revising or editing text, esp. in preparation for publication; (also) an act of editorial revision.
What I am referring to is at best an act of simulated redaction by the author. It is not the editor's work, but the author's. I just wonder whether there exists a literary term for this kind of simulated redaction.