Since this latest relaunch it comprises three parts, the newspaper itself which includes the original "Insight" section, a sports section and Spectrum magazine which incorporates At Home, originally a separate magazine.
Ultimate ownership of Scotland on Sunday has changed several times since launch.
The Scotsman Publications Limited, which also produces The Scotsman, Edinburgh Evening News and the Herald & Post series of free newspapers in Edinburgh, Fife, West Lothian and Perth, was bought by the Canadian millionaire Roy Thomson in 1953.
They moved the group from its landmark Edinburgh office on North Bridge, which is now an upmarket hotel, to new offices in Holyrood Road, near where the Scottish Parliament Building was subsequently built.
Then in December 2005 the paper, along with the other Scotsman Publications titles, was sold to Edinburgh-based newspaper group Johnston Press in a £160 million deal.