The Communist Manifesto

Non-fiction is the form of any narrative, account, or other communicative work whose assertions and descriptions are understood to be factual. This... presentation may be accurate or not—that is, it can give either a true or a false account of the subject in question—however, it is generally assumed that authors of such accounts believe them to be truthful at the time of their composition or, at least, pose them to their audience as historically or empirically true. Note that reporting the beliefs of others in a non-fiction format is not necessarily an endorsement of the ultimate veracity of those beliefs, it is simply saying it is true that people believe them . Non-fiction can also be written about fiction, giving information about these other works. Non-fiction is one of the two main divisions in writing, particularly used in libraries, the other form being fiction. However, non-fiction need not be written text necessarily, since pictures and film can also purport to present a factual account of a subject.
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Sociology is the scientific study of society . It is a social science which uses various methods of empirical investigation and critical analysis to... develop a body of knowledge about human social activity. For many sociologists the goal is to conduct research which may be applied directly to social policy and welfare, while others focus primarily on refining the theoretical understanding of social processes. Subject matter ranges from the micro level of individual agency and interaction to the macro level of systems and the social structure. The traditional focuses of sociology have included social stratification, social class, culture, social mobility, religion, secularisation, law, and deviance. As all spheres of human activity are affected by the interplay between social structure and individual agency, sociology has gradually expanded its focus to further subjects, such as health, medical, military and penal institutions, the Internet, and the role of social activity in the development of scientific knowledge. The range of social scientific methods has also expanded.
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Political philosophy is the study of such topics as politics, liberty, justice, property, rights, law, and the enforcement of a legal code by... authority: what they are, why they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it should take and why, what the law is, and what duties citizens owe to a legitimate government, if any, and when it may be legitimately overthrown, if ever. In a vernacular sense, the term "political philosophy" often refers to a general view, or specific ethic, political belief or attitude, about politics that does not necessarily belong to the technical discipline of philosophy. Political philosophy can also be understood by analysing it through the perspectives of metaphysics, epistemology and axiology. It provides insight into, among other things, the various aspects of the origin of the state, its institutions and laws. Chinese political philosophy dates back to the Spring and Autumn Period, specifically with Confucius in the 6th century BC.
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History is the discovery, collection, organization, and presentation of information about past events. History can also mean the period of time... after writing was invented. Scholars who write about history are called historians. It is a field of research which uses a narrative to examine and analyse the sequence of events, and it sometimes attempts to investigate objectively the patterns of cause and effect that determine events. Historians debate the nature of history and its usefulness. This includes discussing the study of the discipline as an end in itself and as a way of providing "perspective" on the problems of the present. The stories common to a particular culture, but not supported by external sources are usually classified as cultural heritage rather than the "disinterested investigation" needed by the discipline of history. Events of the past prior to written record are considered prehistory.
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