Saint Kitts and Nevis, along with Anguilla, were federated in 1882. In the first few decades of the 20th century economic hardship and lack of opportunities led to the growth of a labour movement; the Great Depression led sugar workers to go on strike in 1935. The 1940s saw the founding of the St Kitts-Nevis-Anguilla Labour Party (later renamed the Saint Kitts and Nevis Labour Party, or SKNLP) under Robert Llewellyn Bradshaw. Bradshaw later became Chief Minister and then Premier of the colony from 1966 to 1978; he sought to gradually bring the sugar-based economy under greater state control. The more conservative-leaning People's Action Movement party (PAM) was founded in 1965.