Māori quickly adopted writing as a means of sharing ideas, and many of their oral stories and poems were converted to the written form. Most early English literature was obtained from Britain, and it was not until the 1950s when local publishing outlets increased that New Zealand literature started to become widely known. Although still largely influenced by global trends (modernism) and events (the Great Depression), writers in the 1930s began to develop stories increasingly focused on their experiences in New Zealand. During this period, literature changed from a journalistic activity to a more academic pursuit. Participation in the world wars gave some New Zealand writers a new perspective on New Zealand culture and with the post-war expansion of universities local literature flourished. Dunedin is a UNESCO City of Literature.