Derrida traveled widely and held a series of visiting and permanent positions. Derrida became full professor ("directeur d'études") at the École des Hautes Études en Sciences Sociales in Paris from 1984 (he had been elected at the end of 1983). With François Châtelet and others he in 1983 co-founded the Collège international de philosophie (CIPH), an institution intended to provide a location for philosophical research which could not be carried out elsewhere in the academia. He was elected as its first president. In 1985 Sylviane Agacinski gave birth to Derrida's third child, Daniel.