LallansLallans meaning 'lowlands' refers to Scots, the language of lowland Scotland, once the state language of Scotland before 1603, Scots has a number of dialects. It is spoken in Lowland Scotland and Ulster. Interest in it was also revived by Hugh MacDiarmid's Lallans Movement in the 1920s.
Scots has changed to some extent over the years, as any living language does. Examples can be found on the Internet from John Barbour in the 14th century up to MacDiarmid in the 20th century, for those who are interested. But the most famous Scots literature worldwide is undoubtedly Robert Burns poetry of the late 18th century. An humorous example can be found in the Burns supper article, in the form of the Address To A Haggis.