Final answer:
The Badminton Association of England (BAE) officially launched the sport of badminton at a house called 'Dunbar' in Portsmouth in 1893.
Step-by-step explanation:
The Badminton Association of England (BAE) officially launched the sport at a house called "Dunbar" in Portsmouth in the year 1893. The sport of badminton was developed in the mid-19th century as a variation of a similar game called battledore and shuttlecock. It became increasingly popular, leading to the formation of the BAE to establish rules and regulations for the sport.