Reference Guides » Undocumented Contexts Language The "Language`" context is a relatively new addition. We won't get into it too much since it's already well handled here See Also: https://mathematica.stackexchange.com/questions/165843/language-documentation-project https://mathematica.stackexchange.com/questions/152823/what-can-the-mutationhandler-functions-do https://mathematica.stackexchange.com/questions/52414/error-changing-dataset-using-part