Updated with what I could find on the suggested stuff. The 30s to 50s are still very light, but this seems to reflect the movement being generally pretty dead after the war.
==During-post WW2: Little direct activity?==
1930s
1931-34: Council of Action
1934-1965: Ethel MacDonald and Guy Aldred’s abstentionist United Socialist Movement
1936: Anarchist Federation of Britain (AFB) founded
1936: Regeneration news sheet runs July-Oct, brings attention to Spain
1936-39: Spain And The World founded in December, later becoming Revolt!
1936-39: Anarchists join the International Brigades in Spain
1939-1945: Anti-militarism
1940s
1939-1945: Revolt! becomes War Commentary
1942: Hundreds turn out to anti-militarist meeting
1944-45: Bernieri, Richards, Hewetson and Samson arrested for sedition, major free-speech case.
1944: Anarchist Federation of Britain formed
1945: War Commentary formally renamed to Freedom
1945-1950s: Squatting movement
1946: Syndicalist Workers Federation formed from split in AFB, lasts until late ‘60s
1950s
1953: League Against Capital Punishment formed
1954-58: Malatesta Club in London
1953-1969: Campaign against capital punishment
1959: Anarcho-pacifist Direct Action Committee pushes CND into backing Aldermaston march
==1960s: British anarchism sees period of limited revival==
1960s
1960-68: Committee of 100
1960-1992: Solidarity group and journal
1961-1970: Anarchy magazine published
1963: Anarchist Federation of Britain (II)
August 1964: Stuart Christie arrested attempting to smuggle explosives into Spain
1964-67: Campaign to release Christie
1967: Anarchist Black Cross Founded
1968: Anarchist Communist Discussion Group founds Anarchist Federation [IAF-IFA also founded at this time]
1968-69: London squatting campaign
1960s-70s: Free festivals movement
1970s
1969-1990: Claimants unions, linked through the Federation of Claimants Unions
1970: Black Flag magazine founded
1970-72: Angry Brigade bombings
1971-75: Organisation of Revolutionary Anarchists splits from AFB II, publishes Libertarian Struggle
1973: First protests at Twyford Down
1974-1982: Cienfuegos Press
1975: Advisory Service for Squatters founded
1975-1980: ORA becomes Anarchist Workers Association, publishes Anarchist Worker
1976-80s: SCRAM and Torness nuclear plant occupations
1978-79: Persons Unknown trial
1979: Kate Sharpley Library founded
Late '70s/Early '80s: Anarcho-punk
Late ‘70s-80s: Anti nuclear movement
==1980s: Growth around green issues and fighting Thatcher==
1980s
1979-94: Direct Action Movement
1979-1987: Roads protest movement
1981: London Anarchist Bookfair founded, attendance so poor that next one happens in 1984.
1981-83: Molesworth Peace Camp
1981-85: Peace Camps movement (main phase, some camps continue today)
1981-2000: Greenham Common Women’s Peace Camp
1982: Faslane Peace Camp founded
1983: Class War paper and organisation founded
1983-84: Stop The City demonstrations
1984: Green Anarchist begins publishing, splits in late '90s
1984-1988: Virus Magazine
1985: Aldermaston Women’s Peace Camp founded
1985: Major protests at Molesworth
1985-1995: Anarchists with DAM heavily involved in street-level anti-fascism
1986: Class War refounded as Class War Federation
1986: Anarchist Communist Federation founded
1986: Cruisewatch
1980s-90s: Rave culture
1990s
1988-1993: Anarchists heavily involved in anti-Poll Tax campaign
1991: Class War international conference
1991-2003: Reclaim the Streets (RTS), following on from road protest movement
1992: Radical Routes forms
1992: Earth Liberation Front founded
1992: Battle of Waterloo
1992 Anti-election alliance rally in london
1992-93: Twyford Down motorway confrontation
1992-2003: Do or Die! journal
1993-97: Squall magazine
1993: Haringey Solidarity Group formed
1993: Combat 18 firebombing of Freedom Press
1993-96: “Pollok Free State” M77 road extension protest camp
1993-98?: ContraFLOW
1993-99: M11 link road protests
1994: Solidarity Federation founded by former DAM members
1994: Anarchy in the UK festival
1994: Solsbury Hill road protests
1994-2014: Schnews published as free weekly newssheet
1994: Undercurrents video collective founded
1995: Camden High Street and Islington shutdown (RTS)
1995-96: Newbury Bypass protest camp
1995-97: GandALF raids and trial
1996: M41 Motorway shutdown (RTS)
1996-97: Fairmile protest tunnels
1997: Anti-election Alliance campaign
1998-2002: Movement Against Monarchy
1998: Bradford 1in12 Club briefly revitalises May Day marches
1999: Carnival Against Capital
1999: Indymedia founded in November, UK branch from 2000
1999: Anarchist Communist Federation renamed to Anarchist Federation
==Millenium: Movement activity declines significantly==
2000s
2000: No Borders Network founded
2000-07: WOMBLES group
2001: Bristolian founded
2002-2004: Anarchist Youth Network
2002: enrager.org founded, becomes libcom.org in 2003
Oct 2004: European Social Forum clashes/interventions in London
2004-10: Antifa (anarchist-specific)
2006-10: Camp for Climate Action
2007: London Coalition Against Poverty
2008-10: Whitechapel Anarchist Group
2010s
2010: Student fees protests
2010: Mark Kennedy revealed as police spy, sparking series of unmaskings
2011: Anti-cuts protest sees first large black bloc in London, following on from student protests
2011-12: Occupy movement
2012: Anti-Raids Network founded
2013-present: Refugee solidarity as Syrian war continues
2014: Freedom newspaper ceases monthly publication and moves online, continues irregular freesheet
2014: Sisters Uncut founded
2015: London Bookfair draws approx 3,500 people
2015-present: Antifa (broader intake)
2016: Pitchford spycops inquiry opens