The history of writing records the development of expressing language by letters or other marks. In the history of how systems of representation of language through graphic means have evolved in different human civilizations, more complete writing systems were preceded by proto-writing, systems of ideographic and/or early mnemonic symbol. True writing, in which the entire content of a linguistic utterance is encoded so that another reader can reconstruct, with a fair degree of accuracy, the exact utterance written down, is a later development, and is distinguished from proto-writing in that the latter typically avoids encoding grammatical words and affixes, making it difficult or impossible to confidently reconstruct the exact meaning intended by the writer unless a great deal of context is already known in advance.
Writing numbers for record keeping began long before writing of language.