October and December 1822
Under her pseudonym of 'Discipulus', HM first reached print with an article in the Unitarian Monthly Repository
on "Female Writers on Practical Divinity", issued in two parts. In February 1823 she published another article "On Female Education".
HM's short story "The Rioters", presaging some of her later writings, marked a decisive step towards industrial fiction or the social problem novel; initially anonymous, it appeared in a later issue with her name.
February 1832-February 1834
Harriet Martineau published her immensely popular monthly series Illustrations of Political Economy
: twenty-five didactic narratives which anticipated the social problem novel.
By 18 August 1838
HM published "perhaps the first book on the methodology of social research":
her How to Observe. Morals and Manners
28-30 December 1869
Signing herself 'An Englishwoman', HM wrote three letters to the Daily News
decrying the Contagious Diseases Acts.
27 June 1876
HM died in a coma, of a slow-growing ovarian tumour, at her home in Ambleside
in the Lake District