Integration of languages

1. Artificial and abrupt integration i.e., via conquest, edict, etc., where one language replaces another.

2. Natural and prolonged integration via acculturation or assimilation, e.g. where a linguistic minority is eventually absorbed.

3. Evolution of differentiated or diverse languages towards a shared vocabulary, similar syntax, etc., culminating by merging into what becomes a new language.

4. Creation of Esperanto, Volapuk or other proposed world languages.

5. Evolution of mathematical and logical symbology, e.g. the language of machine, artificial intelligence.