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 March 2018
| Anniversary | Details |
| 1st | The United Kingdom invokes Article 50 of the Treaty on European Union, beginning the formal EU withdrawal process. (29th Mar 2017) |
| 1st | The new twelve-sided £1 coin is released. (28th Mar 2017) |
| 1st | Four people die and at least forty others are injured in what is treated as a terrorist attack in London, when a car driver, later identified as Khalid Masood, ploughs through pedestrians on Westminster Bridge before stabbing PC Keith Palmer to death at the Palace of Westminster. Police later shoot Masood dead. In response, the Houses of Parliament are placed in lockdown for four hours, as is the London Eye and Whitehall, and the devolved Scottish Parliament suspends a debate on a second Scottish independence referendum. (22nd Mar 2017) |
| 1st | The Government announces that it will invoke Article 50 of the Lisbon Treaty on 29 March. (20th Mar 2017) |
| 5th | A blizzard which brings the heaviest March snow for 50+ years hits the north of England. (23rd Mar 2013) |
| 5th | The final BBC news bulletins are transmitted from Television Centre, after 43 years of occupying the building, as the corporation moves its entire news operation to Broadcasting House in central London. (18th Mar 2013) |
| 5th | Closure of Daw Mill colliery following a major fire, the last mine in the Warwickshire Coalfield. (7th Mar 2013) |
| 10th | London Heathrow Terminal 5 opened at Heathrow Airport to British Airways with many problems with the IT system, coupled with insufficient testing and staff training, which caused over 500 flights to be cancelled. (28th Mar 2008) |
| 10th | Michael Donovan, 39, from Batley Carr, West Yorkshire, is arrested for the kidnap of the 9-year-old, Shannon Matthews. (14th Mar 2008) |
| 40th | Conservative Party recruit advertising agency Saatchi & Saatchi to revamp their image. (30th Mar 1978) |
| 40th | The first radio episode of The Hitchhiker's Guide to the Galaxy, by Douglas Adams, is transmitted on BBC Radio 4. (8th Mar 1978) |
| 50th | A demonstration in London's Grosvenor Square against U.S. involvement in the Vietnam War leads to violence - 91 police injured, 200 demonstrators arrested. (17th Mar 1968) |
| 50th | Mauritius achieves independence from British Rule. (12th Mar 1968) |
| 50th | coal mining in the Black Country, which played a big part in the Industrial Revolution, ends after some 300 years with the closure of Baggeridge Colliery near Sedgley. (2nd Mar 1968) |
| 50th | Commonwealth Immigrants Act 1968 further reduces right of entry for citizens from the British Commonwealth to the U.K. (1st Mar 1968) |
| 60th | work on the M1, Britain's first full length motorway, begins. The first stretch of the motorway, due to open next year, will run from London to the Warwickshire-Northamptonshire border. During the 1960s, the remainder of the motorway will be built to give London an unbroken motorway link with Leeds some 200 miles away. (24th Mar 1958) |
| 60th | official opening by Prince Philip, Duke of Edinburgh of the London Planetarium, the first planetarium in Britain. (19th Mar 1958) |
| 70th | Britain signs the Treaty of Brussels with Belgium, France, Luxembourg and the Netherlands. (17th Mar 1948) |
| 75th | Royal Navy escort carrier HMS Dasher (D37) is destroyed by an accidental explosion in the Firth of Clyde, killing 379 of the crew of 528. (27th Mar 1943) |
| 75th | last church service in the village of Derwent, Derbyshire, before it is demolished (together with Ashopton) for construction of Ladybower Reservoir. (17th Mar 1943) |
| 75th | First flight of Gloster Meteor jet aircraft in the United Kingdom. (5th Mar 1943) |
| 75th | "Exercise Spartan", a major rehearsal for next year's Allied Invasion of Normandy, is staged across southern England. (4th Mar 1943) |
| 75th | World War II: In London, England, 173 people are killed in a crush while trying to enter an air-raid shelter at Bethnal Green tube station. (3rd Mar 1943) |
| 100th | in London at the Wood Green Empire, Chung Ling Soo (William E Robinson, US-born magician) dies during his trick where he was supposed to "catch" two separate bullets - one of them perforates his lung. He dies the following morning in hospital. (23rd Mar 1918) |
| 100th | Imperial German Navy U-boat SM U-19 sinks HMS Calgarian off Rathlin Island, Ireland, with the loss of 49 lives. (1st Mar 1918) |
| 150th | Henry O'Farrell attempts to assassinate Prince Alfred, Duke of Edinburgh. (12th Mar 1868) |
| 175th | Marc Isambard Brunel's Thames Tunnel, the first tunnel under the River Thames, is opened. (25th Mar 1843) |
| 250th | William Cookworthy of Plymouth is granted a patent for the manufacture of true porcelain. (17th Mar 1768) |
Alternatively, see all anniversaries for this month.
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