Described as the most "ancient general newspaper in
Scotland" (Mitchell's 1846). The Caledonian Mercury appeared in 1720, and
was a "Jacobite paper which became the organ of the Highland Army in '45,
and which was printed and owned by Thomas Ruddiman from 1729" (Gillespie).
In November 1829,
there was "an extraordinary dispute" between the editors of The
Caledonian Mercury and The Scotsman, arising out of attacks the former was
allegedly making continually on the latter. It even resulted in a duel between
the editors" (Couper, SNQ 8:3s).