Reciprocal of 89/Mistake

Source Work

 * The Dictionary
 * $89$
 * $89$

Mistake

 * $89$ is the $11$th Fibonacci number, and the period of its reciprocal is generated by the Fibonacci sequence: $1 / 89 = 0 \cdotp 11235 \ldots$

Correction
That should read:
 * $1 / 89 = 0 \cdotp 01123 \, 5 \ldots$

This mistake is corrected in the of $1997$.