In 1960, Miłosz was offered a position as a visiting lecturer at the University of California at Berkeley. With this offer, and with the climate of McCarthyism abated, he was able to move to the United States. He proved to be an adept and popular teacher, and was offered tenure after only two months. The rarity of this, and the degree to which he had impressed his colleagues, are underscored by the fact that Miłosz lacked a PhD and teaching experience. Yet his deep learning was obvious, and after years of working administrative jobs that he found stifling, he told friends that he was in his element in a classroom. With stable employment as a tenured professor of Slavic languages and literatures, Miłosz was able to secure American citizenship and purchase a home in Berkeley.