In the early days of its history, theatrical productions in Ireland tended to serve the political purposes of the administration, but as more theatres opened and the popular audience grew, a more diverse range of entertainments were staged. Many Dublin-based theatres developed links with their London equivalents and performers and productions from the British capital frequently found their way to the Irish stage. However, almost all Irish playwrights from William Congreve to George Bernard Shaw found it necessary to leave their native island to establish themselves.