Passage: South Korea shares its traditional culture with North Korea, but the two Koreas have developed distinct contemporary forms of culture since the peninsula was divided in 1945. Historically, while the culture of Korea has been heavily influenced by that of neighboring China, it has nevertheless managed to develop a unique cultural identity that is distinct from its larger neighbor. Its rich and vibrant culture left 19 UNESCO Intangible Cultural Heritages of Humanity, the third largest in the world, along with 12 World Heritage Sites. The South Korean Ministry of Culture, Sports and Tourism actively encourages the traditional arts, as well as modern forms, through funding and education programs.The industrialization and urbanization of South Korea have brought many changes to the way modern Koreans live. Changing economics and lifestyles have led to a concentration of population in major cities, especially the capital Seoul, with multi-generational households separating into nuclear family living arrangements. A 2014 Euromonitor study found that South Koreans drink the most alcohol on a weekly basis compared to the rest of the world. South Koreans drink 13.7 shots of liquor per week on average and, of the 44 other countries analyzed, Russia, the Philippines, and Thailand follow.

Question: Which year was the peninsula divided?
1945