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Subclass PE
| PE1-3729 | English | |
| PE101-(458) | Anglo Saxon. Old English | |
| PE501-(693) | Middle English | |
| PE(814)-896 | Early Modern English | |
| PE1001-1693 | Modern English | |
| PE1700-3602 | Dialects. Provincialisms, etc. | |
| PE3701-3729 | Slang. Argot, etc. | |
