BDO stands for British Darts Championship while PDC stands for Professional Darts Corporation, both of them are international professional darts championships.
Not like other professional sports which the one and only organisation to take on all the responsibilties like rules or revenue of the tournament, professional dart has two main organizations to execute these missions.
Some worldwide darts tournaments belong to the British Darts Championship while the others belongs to the Professional Darts Corporation. Both of them successfully held different seperated tournaments all year round, including of the World Cup Darts Championship. This means that throughout each year, there are 2 worldwide champions at the same time. Theoretically, there is the one and only organization for managing the worldwide darts tournament which is the British Darts Championship. Olly Croft established BDO in 1973 and this organization smoothly kept on its work to be the top one international darts organization until the beginning of the 1990s. This was in 1978 when BDO started hosting the worldwide darts championship for the first time and this event provoked the development and spreading of darts throughout the world.
The number of darts tournaments and championships being streamed via television has increased drammatically, hence, there are more and more darters chose darts to be the professional career throughout the 1970s, however, at the beginning of the 1980s, the popularity of the sport underwent a decrease. Darts started to be visualized with bad images being caricatured with drunk guys smoking, laying on the bar/pub floor. It became a satired story, especiallly with the imfamous picture namely Not the Nine O’Clock News.