- On 1975-03-21, Curved Air performed at Guildhall in Plymouth, England, UK - while Andy Summers performed with Kevin Coyne in Utrecht, The Netherlands.
- On 1977-03-21, The Police performed at the Effenaar (?) in Eindhoven, The Netherlands.
- On 1978-03-21, The Police sign a 35 page contract at A&M offices in London, England, UK.
- On 1979-03-21, The Police performed at The Painesville Agora in Painesville, OH, USA.
- On 1980-03-21, The Police performed at the Hordern Pavilion in Sydney, Australia.
- On 1981-03-21, The Police cancelled a concert in Munich, Germany.
- On 1985-03-21, Sting was recording The Dream Of The Blue Turtles at Eddy Grant's Blue Wave Recording Studio in St.Philip, Barbados.
- On 1987-03-21, The Police Box was released in Japan.
- On 1988-03-21, Sting performed at the The Forum in Los Angeles, CA, USA.
- On 1993-03-21, Sting performed at the Music Hall in Hannover, Germany.
- On 1994-03-21, Stewart Copeland was on Barbados - while Sting flew from Rio de Janeiro to Buenos Aires, Argentina.
- On 1995-03-21, Sting and Trudie Styler were in Norfolk, England, UK - shooting The Grotesque.
- On 1996-03-21, Sting performed at the Spektrum in Oslo, Norway.
- On 1997-03-21, Sting and Trudie Styler were interviewed for a 1 hour VH1 TV special in the USA.
- On 1999-03-21, Andy Summers and Stewart Copeland flew to Cuba to spend a week in Havana as part of the "Music Bridges...Over Troubled Waters" team..
- On 2000-03-21, Sting performed at The Waterfront Hall in Belfast, Northern Ireland, UK - while Andy Summers participated in a chat by "guitar.com" while being in Chicago, IL, USA..
- On 2006-03-21, Stewart Copeland sent an advance copy of his movie Everyone Stares: The Police Inside Out to Germany.
- On 2007-03-21, The Police rehearsed at Sting's home in Tuscany.
- On 2010-03-21, Henry Padovani took a train from London to Paris, France - while Sting was at the 606 Club in London, England, UK.
- On 2011-03-21, Henry Padovani finished recording his acoustic album with Mark St. John at Smokehouse Studios in London, England, UK.
- On 2012-03-21, Sting performed at the Hammersmith Apollo in London, England, UK.
- On 2015-03-21, Andy Summers promoted his movie Can't Stand Losing You: Surviving The Police in New York, NY, USA - while Sting watched Fiction Plane at the Simplon in Groningen, The Netherlands.
- On 2016-03-21, Andy Summers was interviewed by Fabrizio Nikki Lavoro for Radio DeeJay in Milan, Italy.
- On 2017-03-21, Sting performed at Sant Jordi Club in Barcelona, Spain.