What (who) is 2020 BDO & WDF calendar - definition

WIKIMEDIA DISAMBIGUATION PAGE

Bdo; BDO (disambiguation)

20–20–20 club

ACCOMPLISHMENT IN BASEBALL

20–20–20–20 club; 20-20-20 Club; 20-20-20 club; 20-20-20-20 club

In Major League Baseball (MLB), the 20–20–20 club is the group of batters who have collected 20 doubles, 20 triples and 20 home runs in a single season. Frank Schulte was the first to achieve this, doing so in 1911.

https://en.wikipedia.org/wiki/20–20–20_club

PDP-20

TYPE OF MAINFRAME COMPUTER

DECsystem-20; DECSystem-20; PDP-20; DEC-20; DECSYSTEM 20; DECSYSTEM 2020; DECSYSTEM 2040

The most famous computer that never was. PDP-10 computers running the TOPS-10 operating system were labelled "DECsystem-10" as a way of differentiating them from the PDP-11. Later on, those systems running TOPS-20 were labelled "DECSYSTEM-20" (the block capitals being the result of a lawsuit brought against DEC by Singer, which once made a computer called "system-10"), but contrary to popular lore there was never a "PDP-20"; the only difference between a 10 and a 20 was the operating system and the colour of the paint. Most (but not all) machines sold to run TOPS-10 were painted "Basil Blue", whereas most TOPS-20 machines were painted "Chinese Red" (often mistakenly called orange). [Jargon File] (1994-12-21)

2019–20 DEL season

SPORTS SEASON

2019-20 DEL season; 2020 DEL playoffs

The 2019–20 Deutsche Eishockey Liga season was the 26th season since the founding of the Deutsche Eishockey Liga running from 13 September 2019 to 10 March 2020. The season was ended prematurely due to the COVID-19 pandemic in Germany, and EHC Red Bull München, which had won the regular season, was selected by the DEL for the 2020–21 Champions Hockey League, as final regular season standings in lieu of playoffs were used to determine DEL nominations to the league.

https://en.wikipedia.org/wiki/2019–20_DEL_season

Wikipedia

BDO

BDO may refer to:

BDO Global, the world's fifth-largest accountancy network
Banco de Oro, one of the largest banks in the Philippines
Barton, Durstine & Osborn, the former name of advertising agency BBDO
Behavior Detection Officer
Big Day Out, an annual music festival held in Australia and New Zealand
Big Dumb Object, a term used in science fiction
Black Desert Online, an MMORPG
Block Development Officer, the official in charge of an administrative division (Block) of some South Asian countries
British Darts Organisation (now defunct), former governing body of British darts
Business Depot Ogden, the former Defense Depot Ogden Utah converted into a business park
Husein Sastranegara International Airport, the IATA code served in Bandung, Indonesia
Butanediol, especially 1,4-Butanediol, an organic chemical compound
League of German Officers, German: Bund Deutscher Offiziere, an association of German prisoners of war in the Soviet Union

https://en.wikipedia.org/wiki/BDO