27 Sep
2015
27 Sep
'15
11:48 p.m.
It seems that nroff had the ability to show underlined
text very early
Pre-Unix roff had the .ul request. Thus I expect (but haven't checked)
that it was in Unix roff. It would be very surprising if nroff, which was
intended to be more capable that roff, didn't have some underlining
facility right from the start.
Doug