THE WEEK OF THE FOUR FRIDAYS
an imaginary date that will never arrive ...1760-72 obs.
FIRST DOCUMENTED USE
1760-72 - see EXAMPLE below
"...exactly at the period that the hogs shall be brought to feed along
with the herrings: or at the time of the appearance of the comet
with three tails; or on the week of the four Fridays,
so long looked for by astrologians."
From: The Fool of Quality
Or, The History of Henry, Earl of Moreland
By: Henry Brooke, 1760-72
• A New English Dictionary on Historical Principles,
James Murray, 1887-1933