The story
Representatives of 34 national bar associations gathered in New York City, New York on 17 February 1947 to create the IBA. Initial membership for the first two decades was limited to bar associations and law societies, but in 1970, IBA membership was opened to individual lawyers. Members of the legal profession including barristers, advocates, solicitors, members of the judiciary, in-house lawyers, government lawyers, academics and law students comprise the membership of the IBA.
From Wikipedia’s article on International Bar Association, shared under CC BY-SA 4.0.5