| Code | Description | Items |
|---|---|---|
| 400 | Language | 88 |
| 410 | Linguistics | 181 |
| 420 | English & Old English | 187 |
| 430 | Germanic languages German | 223 |
| 440 | Romance languages French | 40 |
| 450 | Italian, Romanian, Rhaeto-Romantic | 511 |
| 460 | Spanish & Portugese languages | 35 |
| 470 | Italic Latin | 35 |
| 480 | Hellenic languages Classical Greek | 23 |
| 490 | Other languages | 84 |