“Mr Haughey was initially strongly critical of the Anglo-Irish Agreement”. Photograph: Matt Kavanagh/The Irish Times

The claim that former Taoiseach Charles Haughey “distrusted” his own Department of Foreign Affairs is highlighted in Northern Ireland Office files ju(...)

The late DUP leader  Ian Paisley: said he had urged SDLP leader John Hume to start talking with other political leaders. Photograph: Matt Kavanagh/The Irish Times

The late Democratic Unionist Party leader Rev Ian Paisley was rebuked by Northern Ireland secretary of state Douglas Hurd in 1984 after Dr Paisley ha(...)

Stormont culture minister Caral Ni Chuilin, Northern Ireland Deputy First Minister  Martin McGuinness and Minister for Heritage  Heather Humphreys  in Newry, Co Down at the  National Famine Commemoration ceremony. Photograph: Paul Faith.

The tragedy of a coffin ship which hit an iceberg and sank was recalled at the first National Famine Commemoration event to be held in Northern Irelan(...)

Gerry Adams  led a delegation of language activists to the Arts Council in 1986. Photograph: AP Photo/Alastair Grant

A senior Irish-language poet from west Belfast voiced doubts about the linguistic proficiency of an Irish-language deputation to the Northern Ireland (...)

 Seán MacBride in 1987:   associated with movement for fair employment. Photograph: Paddy Whelan

British concern at the growing success of the Irish-American campaign to persuade US state legislatures to adopt the MacBride Principles on fair emp(...)

 Harland and Wolff  workers return to the Belfast shipyard in November 1999 after a  mass walkout during a dispute with management over a multimillion-pound contract. Photograph:  Steven Davison/Pacemaker

This year’s declassified Belfast files chart the final decline of former shipbuilding giant Harland and Wolff. They show that in 1987, faced by mounti(...)

Fianna Fáil leader Charles Haughey in 1986. Photograph: Matt Kavanagh

A British foreign office memo on the possible return to power of Charles Haughey as taoiseach in 1987 concluded that his “poor” record on the economy (...)

RUC chief constable Sir John Hermon: said  ‘little or no’ intelligence  provided by Garda. Photograph: Pacemaker

The RUC was dissatisfied at the level of co-operation from the Garda Síochána during Charles Haughey’s minority administration, previously confidentia(...)

 Charles Haughey: ‘A highly pragmatic and astute politician with few scruples and a keen eye for the main chance,’ according to an NI official. Photograph:  Matt Kavanagh

Northern Ireland officials viewed Charles J Haughey as “a highly pragmatic and astute politician” who had “few scruples” but had also laid the groundw(...)

 Rev Ian Paisley: the private letter from a Garda body in Dublin was addressed to the most senior Irish official at the Anglo-Irish Secretariat at Maryfield. Photograph: Peter Thursfield

The story of how a private letter from a Garda body in Dublin, addressed to the most senior Irish official at the Anglo-Irish Secretariat at Maryfield(...)