When did plagiarism start?

Question:

When did plagiarism start?

The year it started?
A brief history of Plagiarism?

Best Answer - Chosen by Asker: plagiarism

1621, from L. plagiarius "kidnapper, seducer, plunderer," used in the sense of "literary thief" by Martial, from plagium "kidnapping," from plaga "snare, net," from PIE base *p(e)lag- "flat, spread out." Plagiary is attested from 1597.