Freud turned to Brill and Jones to further his ambition to spread the psychoanalytic cause in the English-speaking world. Both were invited to Vienna following the Salzburg Congress and a division of labour was agreed with Brill given the translation rights for Freud's works, and Jones, who was to take up a post at the University of Toronto later in the year, tasked with establishing a platform for Freudian ideas in North American academic and medical life. Jones's advocacy prepared the way for Freud's visit to the United States, accompanied by Jung and Ferenczi, in September 1909 at the invitation of Stanley Hall, president of Clark University, Worcester, Massachusetts, where he gave five lectures on psychoanalysis.