Nyasaland's history was marked by the massive loss of African communal lands in the early colonial period. In January 1915, the Reverend John Chilembwe staged an attempt at rebellion in protest at discrimination against Africans. Colonial authorities reassessed some of their policies. From the 1930s, a growing class of educated African elite, many educated in the United Kingdom, became increasingly politically active and vocal about gaining independence. They established associations and, after 1944, the Nyasaland African Congress (NAC).