Columbia subject headings:
English language--Middle English, 1100-1500.
English language--Old English, ca. 450-1100.
Harvard subject headings:
English language--Middle English, 1100-1500
English language--Old English, ca. 450-1100
English language--Old English, ca. 450-1100.
Princeton subject headings:
English language--Middle English, 1100-1500.
English language--Old English, ca. 450-1100.