There is a long tradition of anti-British sentiment, specifically anti-English sentiment since the Anglo-Norman invasion of Ireland and often more specifically Anglophobia, within Irish nationalism. Much of this was grounded in the hostility felt by the largely Catholic poor for the Anglo-Irish gentry, which was mainly Anglican. In post-famine Ireland, anti-English hostility was adopted into the philosophy and foundation of the Irish nationalist movement. At the turn of the twentieth century, the Celtic Revival movement associated the search for a cultural and national identity with increasing anti-colonial and anti-English sentiment.