Chronology of 1921

1 Jan –  First authorized reprisals by the British in Cork

2 Jan –  Two RIC men killed in Belfast

5 Jan –  Martial Law extended in Ireland by the British

11 Jan – First ever attack by IRA on British troop train at Dungloe

13 Jan – Harry Boland places his first order for Thompson Guns

18 Jan – Seventeen Sinn Fein MP’s are in prison

5 Feb –   British Intelligence Officer Ryan assassinated in Dublin

11 Feb – Troop train at Millstreet ambushed – one British soldier dead

15 Feb – Troop train ambush at Upton – 3 IRA dead, 2 later executed

20 Feb – Twelve IRA shot in British ambush at Clonmult

28 Feb – Six IRA prisoners executed by the British in Cork

29 Feb – Twelve British soldiers shot dead in Cork

2 Mar –  Ambush at Millstreet kills thirteen British soldiers

3 Mar –  Train ambush at Durrow kills two British

6 Mar –  Lord Mayor Limerick and 2 IRA shot dead by British agent

11 Mar – Selton Hill ambush kills six IRA

11 Mar – Dail Eireann declares war on British administration in Ireland

14 Mar – Six IRA prisoners executed in Mountjoy Prison Dublin

19 Mar – Crossbarry ambush kills 20 British soldiers

21 Mar – Train ambush Headford kills 20 British, 2 IRA, three civilians

22 Mar – IRA papers of Chief of Staff Mulcahy captured by British

28 Mar – Large haul of Sinn Fein/IRA documents seized in Dublin

30 Mar – Captains Dineen and Cronin arrive Ireland with two Thompsons

31 Mar – Rosscarbery RIC station attacked by IRA – six dead

31 Mar – US report condemns British reign of terror in Ireland

18 Apr – First Convention in Chicago of AARIR

23 Apr – IRA kill two Black and Tan officers in Belfast

28 Apr – Four IRA prisoners executed in Cork

29 Apr – IRA train ambush at Ballylynch kills two British

2 May –  IRA ambushed at Lackelly with 14 IRA killed

3 May –  IRA ambush at Tourmakeady kills six British soldiers

4 May –  IRA ambush in Kerry kills eight RIC policemen

5 May –  President DeValera meets Prime Minister Craig in Dublin

13 May – Sinn Fein success in Ireland elections – win 128 of 128 seats

14 May – IRA kill seven RIC officers in various attacks

14 May – IRA hijack British armoured car, enter Mountjoy Jail

15 May – IRA kill eight RIC officers in various attacks

15 May – IRA attacks on houses in England

19 May – IRA lose six dead in ambush at Kilmeena – two British dead

23 May – IRA ambush at Glenwood kills six RIC officers

25 May – IRA burn Customs House Dublin – eight IRA dead

26 May – British capture thousands rounds of US ammo in Dublin

31 May – IRA attack at Youghal kills seven British soldiers

2 Jun -   IRA ambush at Carrowkennedy kills six RIC officers

3 Jun –   IRA ambush at Modreeny kills four British soldiers and RIC

7 Jun –   First N.Ireland Premier James Craig appointed

7 Jun –   Three IRA prisoners executed in Dublin

9 Jun -  More IRA attacks on communication lines in England

15 Jun – 493 Thompson guns seized in New York ship East Side

16 Jun – IRA mine attack kills two soldiers at Rathcoole

16 Jun – First use of Thompson in combat on British troop train Dublin

16 Jun – British reveal 568 IRA murders in Ireland since July 1920

18 Jun – More IRA attacks on railway network in England

22 Jun – British King George visits Belfast and calls for conciliation

22 Jun – 15,000 more British soldiers sent to Ireland

23 Jun – IRA bomb troop train at Adavoyle - four soldiers dead

24 Jun – British Cabinet propose talks with Sinn fein

24 Jun – DeValera arrested by the British but immediately released

1 Jul –   Arthur Griffith MP released from Mountjoy Prison for talks

9 Jul -   British troop train bombed and shot at in Dublin

9 Jul –   Belfast riots leave 20 dead

9 Jul –   Mine exploded killing six civilians at Dungarvan

10 Jul –  Firefight at Castleisland kills five IRA and four British soldiers

10 Jul –  IRA kill two RIC officers in Belfast

11 Jul –  Truce comes into effect between IRA and British

16 Jul –  Serious rioting in Belfast leaves 16 dead

26 Aug – DeValera elected President

1 Sept –  Rioting in Belfast results in twenty deaths

25 Nov – Serious rioting in Belfast leaves 30 dead – trolley bus bombed

3 Dec –  Jail break attempt in Derry leaves two policemen dead

4 Oct -  Journalists invited to Dublin IRA camp where Thompsons seen

4 Dec –  DeValera reviews IRA volunteers in Clare – Thompsons on show

6 Dec –  Anglo-Irish Treaty signed London between Sinn Fein and British

10 Dec – IRA prisoners released from prisons