From Black’s Law - 5th Edition: ‘Plagiarism’ - “The act of appropriating the literary composition of another…and passing them off as the product of one’s own mind.”

Since I included “author unknown” at the end of the writing it’s clear to even the most microscopic intelligent thought I was not passing this off as my own.

You could not be more demonstrably wrong. Please rescind your accusation and action. Thank you.