Timeline
1922
 St John Ambulance Cadets founded on 15 March. The Gateshead Saltwell Nursing Cadets are the first Division formed on 25 May. On 18 November, Rochford in Lancashire is the first town in which a boys and girls Division established on the same day.
                                                      1922
 The British Broadcasting Corporation (BBC) is created
                                                      1925
 First international Cadet Division formed in Mumbai, India
                                                      1928
 All women over 21 get the vote and Alexander Fleming discovers penicillin
                                                      1929
 Wall Street Crash sparks Great Depression
                                                      1933
 First Grand Prior badges awarded to Ambulance Cadets: Cadet Sergeant G. Anderson and Cadet Corporal W. Lloyd from Slough Ambulance Cadet Division. First Grand Prior badge awarded to an international Cadet: Marion Higgins of the Marrickville Cadet Nursing Division, New South Wales, Australia
                                                      1934
 First Grand Prior badge awarded to a Nursing Cadet: Cadet Sergeant Gladys Dodds of Slough Cadet Nursing Division
                                                      1935
 First Penguin paperbacks go on sale
                                                      1937
 George VI became king of the United Kingdom
                                                      1939-1945
 Second World War
                                                      1940
 Nursing Cadet Betty Quinn awarded the George Medal for bravery during the Coventry Blitz when she rescued casualties from an Anderson shelter that had received a direct hit on 19 October 1940. Many other Cadets receive the Meritorious First Aid Certificate for their heroism during air raids. Other war work undertaken by Cadets includes collecting scrap and shrapnel for salvage, working in nurseries looking after the children of women factory workers and acting as stretcher bearers for wounded soldiers returning in hospital ships.
                                                      1944
 War Service badge introduced for Ambulance Cadets
                                                      1947
 India becomes independent from Britain
                                                      1947
 First National Cadet Competitions held at the Royal Horticultural Hall, London, with prizes awarded by HRH The Duchess of Kent. The American Cup for Gallantry was awarded to 13 year-old Nursing Cadet Betty Matthews of Littlehampton, West Sussex, for saving a boy from drowning.
                                                      1948
 The National Health Service (NHS) is founded and the 'SS Empire Windrush' docks at Tilbury
                                                      1951
 The Festival of Britain held on South Bank in London
                                                      1951
 6,000 Cadets parade before HRH The Princess Margaret at Doncaster, South Yorkshire. Nursing Cadet Barbara Johnson from Rotherham Division presented with Cadet Meritorious Certificate for putting out the flames and treating her 7-year old brother when his pyjamas caught alight.
                                                      1952
 HRH Elizabeth II succeeds her father George VI
                                                      1953
 In February Cadets distinguish themselves during the devastating East Coast floods assisting with evacuation of flood victims, sorting and distributing comforts, delivering messages and taking care of the homeless and elderly. 16 year-old Ambulance Cadet John Price from Essex awarded the Order of St John's Life Saving Medal in silver for rescuing people from flooded homes.
                                                      1953
 Cadets on duty at the Coronation of Queen Elizabeth II at Westminster Abbey. A Coronation Camp held at Stubbers, North Ockendon in Essex attended by 2000 Cadets from the UK and abroad. HRH Princess Margaret prevented from attending due to a case of meningitis.
                                                      1956
 Clean Air Act in response to worsening air pollution in urban areas
                                                      1959
 New upper age limit of 16 introduced for Cadets so that boys can move up into Adults before they are called up to National Service
                                                      1962
 Cuban Missile Crisis nearly causes nuclear war
                                                      1965
 St John Ambulance Cadets present at Sir Winston Churchill's state funeral. One of the largest First Aid operations undertaken by St John involving over 4,000 Brigade members from all parts of the UK.
                                                      1966
 England wins the World Cup and the first Notting Hill Carnival is held
                                                      1967
 Abortion and homosexuality are legalised in Britain
                                                      1972
 First official UK Gay Pride rally in London
                                                      1972
 Celebrations held in Hyde Park for the Cadets' Golden Jubilee and the Albert Schweitzer Prize, presented by the Goethe Foundation of Switzerland for services to humanity, awarded to St John Cadets
                                                      1977
 More than a 100 Cadets from Oxfordshire visited Malta for a ten-day camp and 12 Cadets visited New Zealand to celebrate the 50th anniversary of the New Zealand Cadets at Wanganui
                                                      1979
 Margaret Thatcher becomes Prime Minister
                                                      1981
 Inaugural year for the London Marathon and the Great North Run
                                                      1982
 The Falklands War
                                                      1982
 At the time of the Cadets' Diamond Jubilee there are 49,000 Cadets registered in the UK. A Cadet Spectacular is held at the Royal Albert Hall directed by Major Michael Parker and 1,200 Cadets take part. One of the events to commemorate the  Jubilee was the participation in the Nijmegen Vierdaagse, a 100-mile walk in Holland over 4 days. Participation was open to Cadets nationally, with participants from NHQ, South and West Yorkshire, Cleveland, Dorset, Northern Ireland, Northamptonshire, North Yorkshire, and Shropshire.
                                                      1984
 National Miners' strike over pit closures
                                                      1986
 National Cadet of the Year competition established. Cadets are tested on First Aid, communication, teamwork, presentation and media skills in a two-day contest. The first winner is Rebecca Hutchinson from Leicestershire. A new initiative, the St John Badgers for children aged 6-10, is piloted in four counties.
                                                      1987
 Centenary of the St John Ambulance Brigade celebrated with The Great Party held in Hyde Park. This spectacular event was televised and attended by Her Majesty The Queen, Prince Philip and the Duke and Duchess of Gloucester.
                                                      1989
 World Wide Web invented
                                                      1990
 HRH Princess Anne visits Buckinghamshire County Cadet Camp, then the largest in the country with over 270 attendees
                                                      1991
 First meeting of the St John Ambulance National Youth Council held at Cowley Manor, Gloucestershire in April and launched by HRH Princess Anne. Open to members aged 16-25 to have a say in the running of the charity. Logo designed by Christopher Knifton from Coalville Cadet Division, Leicestershire.
                                                      1991
 New Cadet video WHO CARES? launches to raise public awareness of the opportunities available for young people in St John Ambulance
                                                      1992
 Channel Tunnel opens
                                                      1992
 St John celebrates 70 years of Cadets with a challenge for divisions to hold the most interesting/ingenious/amazing 'Birthday Party'. The competition was won by Blackwell B Winning Colliery Quadrilateral Division, Derbyshire who held a party underground at Clipstone Colliery.
                                                      1994
 First women priests ordained by Church of England
                                                      1994
 St John Ambulance run first National First Aid Competition for schools
                                                      1995
 400 Cadets join Veterans to celebrate the 50th anniversary of VE Day
                                                      1998
 Good Friday Agreement
                                                      2000
 First national conference for St John volunteers aged 16-21 takes place at Sheffield University in April and is broadcast online
                                                      2001
 Foot-and-mouth crisis
                                                      2003
 Britain joins US-led invasion of Iraq
                                                      2005
 Bombings on London's transport system
                                                      2017
 Grenfell Tower disaster and Manchester Arena bombing
                                                      2020
 Start of Covid-19 pandemic and First Aid added to National Curriculum in schools