In Drupal is possible to import and export full sets of vocabularies and taxonomy terms via XML. This can save you the time you would need to insert every single term manually.

You will need the Taxonomy XML module and the XML file containing the terms and vocabularies to import.

Install the module, import your file and that's it: your terms are bulk uploaded into the Drupal taxonomy system.

Here's a list of taxonomy XML files ready to be imported into Drupal: