Why rails is internationalization framework?

Rails
1

what is internationalization framework ?
why rails is internationalization framework ?
what are the advance in rails 2.2.0 over rails (< 2.1.1)

2

On 7 Nov 2008, at 07:00, Thani A. wrote:

what is internationalization framework ?
why rails is internationalization framework ?
http://www.artweb-design.de/2008/7/18/the-ruby-on-rails-i18n-core-api
covers rails 2.2’s l18n features.

Fred