* Historically: Before the influence of English, various languages were spoken in Scotland, including Pictish and Brittonic languages.
* Modernity: While English is the dominant language today, Scottish Gaelic has a long history and is still spoken by a significant minority of people, primarily in the Highlands and islands.
* Other Languages: Scots, a language closely related to English but with its own distinct features, is also spoken in Scotland.
Therefore, it's not accurate to say that only one language "used to be spoken" in Scotland. Rather, Scotland has a rich linguistic history with multiple languages coexisting throughout its history.