UK History: Chapter 4, Exercise 3 — Possible Solution
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THE TWO DATES
The Anglo-Saxon Chronicle: ordered in 1085, compiled in 1086.
Recent scholarship: completion may have extended to 1098 to 1114.

HOW TO REPORT IT
"The Domesday survey was ordered in 1085 and compilation was recorded as
completed in 1086, though recent scholarship suggests completion may have
extended to between 1098 and 1114."

WHY
It gives both dates and their sources, and does not choose between them.