The 20th century Literature was highly influenced by significant events that defined the era, such as Spanish flu pandemic, World War I and World War II, nuclear weapons, nuclear power, space exploration, nationalism, decolonization, technological advances, the Cold War and post-Cold War conflicts. Twentieth Century Literature explore core themes of anti-colonialism, democracy, socialism, nationalism, industrialization, nuclear weapons, and globalization and provide their own personal interpretations of the century, as well as their respective nation's experiences and historical memory of the era. The characteristic features of 20th century literature are Realism, Love, Pessimism, Romantic Elements, Nature, Disillusionment, Humanitarian and Democratic note, writing from the Margins, Stream of Consciousness, Theatre of Absurd, Religion and Mysticism