Columbia subject headings:
English language--Early modern, 1500-1700--Dialects--Texts.
English language--Early modern, 1500-1700--Texts.
English language--Middle English, 1100-1500--Dialects--Texts.
English language--Middle English, 1100-1500--Texts.
English language--Old English, ca. 450-1100--Texts.
English language--Standardization.
Harvard subject headings:
Princeton subject headings:
English language--History--Problems, exercises, etc.
English language--Standardization--Problems, exercises, etc.
English language--Variation--Problems, exercises, etc.