Joe Miller (Joseph or Josias) (1684 – August 15, 1738) was an English actor, who first appeared in the cast of Sir Robert Howard’s Committee at Drury Lane in 1709 as Teague. After Miller’s death, John Mottley (1692–1750) brought out a book called Joe Miller’s Jests, or the Wit’s Vade-Mecum (1739), published under the pseudonym of Elijah Jenkins Esq. at the price of one shilling. This was a collection of contemporary and ancient coarse witticisms, only three of which are told of Miller. August 16 became a day to tell a Joe Miller joe to honor the comedian.
Joke 99 states:
A Lady’s Age happening to be questioned, she affirmed she was but Forty, and called upon a Gentleman that was in Company for his Opinion; Cousin, said she, do you believe I am in the Right, when I say I am but Forty? I ought not to dispute it, Madam, reply’d he, for I have heard you say so these ten Years.
*summary primarily from Wikipedia