What is Literature?

The meaning of Literature, have changed through time passes and also it change depending the culture.When we heard literature,  we constantly associate to anything "in letters", in other words, all that is written, such a novels, poems, manuals, etc. But Literature is more than only letters that someone put together, Literature, have a meaning, that also have change during time passes.
Here some definitions of What is Literature?


- Writtings in which expression and form, in connection        withideas of permanent and universal interest, are characteristicor essential features, as poetry, novels, history, biography,and essays.(http://dictionary.reference.com).
- The entire body of writings of a specific language, period, people, etc. (http://www.definitions.net)


 But, what happens with oral traditions? They are not Literature? The answer for this question have varied as same as the definition of Literature have varied, bu  nowadays is correct to considered oral tradition as Literature, but not as Literature itself. It may be Oral Literature, which included all oral traditions. Also film or the visual performing are not like the "written" Literature, or the "Oral" Literature, but are considered as Literature.