I often wonder what significant anniversaries are due at some point in the future as some of them might be of interest as triggers for blog posts or visits somewhere. However, it is often difficult to find out quickly what events have significant anniversaries - hence this section on the website.
By "significant anniversaries", I mean dates that are not, for example, the 73rd anniversary of something, but the 50th, 100th, 200th etc.
It should help to flag up interesting events.
Significant anniversaries during December 2015
| Anniversary | Details |
| 1st | The Scottish government confirms a case of Ebola being treated in a Glasgow hospital. The victim is a healthcare worker who had travelled back from Sierra Leone the previous day. (29th Dec 2014) |
| 1st | Parcel delivery firm City Link announces that it has gone into administration after substantial losses. The general secretary of the RMT union calls the timing of the announcement a "disgrace". (25th Dec 2014) |
| 1st | A High Court judge orders the winding up of Hereford United football club following a petition from the Inland Revenue over unpaid tax debts. (19th Dec 2014) |
| 1st | Libby Lane becomes the new Bishop of Stockport and the first woman to become a bishop of the Church of England since the change to canon law just a month ago. (17th Dec 2014) |
| 1st | Disruption is caused at airports across the country due to a computer system failure at the UK's air traffic control centre, causing hundreds of delays and over eighty cancellations at Heathrow. Delays and cancellations continue the following day. (12th Dec 2014) |
| 1st | Scotland reduces its drink-drive limit from 80 mg to 50mg, bringing the country's legal limit into line with much of mainland Europe. (5th Dec 2014) |
| 5th | Greater Gabbard wind farm first generates electricity. (29th Dec 2010) |
| 5th | Mark Weston, the first person to face a second murder trial in the United Kingdom following the abolition of the double jeopardy rule in England and Wales, is convicted of killing a woman in Oxfordshire in 1995. He is sentenced to life imprisonment with a recommended minimum term of 13 years. (13th Dec 2010) |
| 5th | The coalition government wins a vote in the House of Commons to raise the cap on university tuition fees in England to £9,000 with a majority of 21. (9th Dec 2010) |
| 5th | The Royal Navy aircraft carrier HMS Ark Royal returns to Portsmouth for the last time before being decommissioned. The amphibious warfare ship HMS Albion is announced as her successor as the Royal Navy's flagship. (3rd Dec 2010) |
| 5th | Heavy snow and freezing temperatures now affect most of the country, with road, rail and air services disrupted and thousands of schools shut. Gatwick and Edinburgh Airports are both closed. (1st Dec 2010) |
| 10th | The Civil Partnership Act 2004 comes into force, granting same-sex couples similar legal rights to those of married heterosexuals. The first civil partnership in the United Kingdom under the normal application of the new rules is registered at Belfast City Hall between Shannon Sickles and Grainne Close. The first partnerships in Scotland are registered on 20 December and in England on 21 December. (19th Dec 2005) |
| 10th | Hertfordshire Oil Storage Terminal fire: explosions tear through Buncefield oil storage facility located near Hemel Hempstead in Hertfordshire. (11th Dec 2005) |
| 10th | The last Routemaster buses in regular service in London run, on route 159. (9th Dec 2005) |
| 10th | David Cameron, 39-year-old MP for Witney in Oxfordshire, is elected as Leader of the Conservative Party, defeating David Davis. (6th Dec 2005) |
| 40th | Two new laws, the Sex Discrimination Act 1975 and the Equal Pay Act 1970, came into force aiming to end unequal pay of men and women in the workplace. (29th Dec 1975) |
| 40th | An IRA Active Service Unit takes a couple hostage in Balcombe Street, London. (6th Dec 1975) |
| 40th | Balcombe Street Siege: IRA members on the run from police broke into a London flat taking the residents hostage. The siege ended after six days with the gunmen giving themselves up to the police. (6th Dec 1975) |
| 50th | The British oil platform Sea Gem collapses in the North Sea, killing 13 of the 32 men on it. (27th Dec 1965) |
| 50th | A meteorite shower falls on Barwell, Leicestershire. (24th Dec 1965) |
| 50th | A 70 mph speed limit is applied to all rural roads including motorways for the first time. Previously, there had been no speed limit. (22nd Dec 1965) |
| 50th | A 70 mph speed limit is imposed on British roads. (22nd Dec 1965) |
| 60th | Cardiff is proclaimed the capital city of Wales. (20th Dec 1955) |
| 60th | Cardiff becomes the official capital of Wales. (20th Dec 1955) |
| 60th | The Queen opens a new terminal at London Airport. (16th Dec 1955) |
| 60th | Christopher Cockerell patents his design of hovercraft. (12th Dec 1955) |
| 60th | Clement Attlee resigns as leader of the Labour Party after twenty years. (7th Dec 1955) |
| 60th | Barnes rail crash, Barnes, South London: collision due to signal error and consequent fire: 13 killed, 35 injured. (2nd Dec 1955) |
| 70th | Britain receives its first shipment of bananas since the beginning of the war. (31st Dec 1945) |
| 75th | In The Second Great Fire of London, the Luftwaffe fire-bombs London, killing almost 200 civilians. (29th Dec 1940) |
| 75th | World War II: Approximately 70 people are killed in the Marples Hotel, Fitzalan Square, Sheffield as a result of a German air raid. (12th Dec 1940) |
| 80th | Opening of The De La Warr Pavilion at Bexhill on Sea in East Sussex, designed by Erich Mendelsohn and Serge Chermayeff in the International style. (12th Dec 1935) |
| 90th | Construction of the Queensway Tunnel beneath the River Mersey begins. (16th Dec 1925) |
| 90th | World War I aftermath: The final Locarno Treaty is signed in London, establishing post-war territorial settlements. (1st Dec 1925) |
| 950th | Westminster Abbey is consecrated. (28th Dec 1065) |
Alternatively, see all anniversaries for this month.
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