Trysorfa gwybodaeth (Caerfyrddin)

A fortnightly Welsh language literary and antiquarian periodical, which published articles on subjects such as Welsh history, Welsh traditions and agriculture, alongside poetry and foreign and domestic news. This was the first Welsh periodical to publish more than one issue. The periodical was edited by the Unitarian minister, Josiah Rees (1744-1804) and the Methodist cleric and author, Peter Williams (1723-1796).