It's easy to get started creating your website. Knowing some of the basics will help.
The world knows more that just one single language.
As does Joomla.
In fact Joomla knows even more languages than any other content management system and is most usabla for the world wide web.
The more Joomla driven Websites one has to maintain, the mor eone wishes the ability to maintain them all without having to log in to each and every single of the Backends. three site.
A possible solution could be "Multi-site-management".