There are two most important namespaces:-
√ System.Globalization - contains classes that define culture-related information, including the language, the country/region, the calendars in use, the format patterns for dates, currency and numbers, and the sort order for strings.
√ System.Resources - provides classes and interfaces that allow developers to create, store, and manage various culture-specific resources used in an application. With this namespace you can read a resource file and display it accordingly to the user’s culture.