Final answer:
The founding members of the Badminton World Federation (now known as the International Badminton Federation) in 1934 were England, Scotland, Wales, and Canada.
Step-by-step explanation:
England, Scotland, Wales, Canada. These four countries were the founding members of the Badminton World Federation in 1934, which is now known as the International Badminton Federation (IBF). The IBF was established to govern and promote the sport of badminton on a global scale.
England, Scotland, and Wales are all part of the United Kingdom, and they have a long history of playing badminton. Canada also has a strong badminton tradition and has produced many world-class players.