How does the admin add language?

To add language Admin needs to follow the below steps:

Go to the System Language sub-menu under the System Configurations menu from the left side bar.
There, the admin will find the all language list and to add a new language he/she will find a form at the top right side of that page.
Admin needs to fill the form with appropriate data and click on Save Button.
From there Admin can also set the default language for the system.