Yes, the Copyright laws passed in the late 19th century helped put a stop to the illegal duplication of film prints and enabled the top U.S. film producers to gain control over the illegal circulation of their movies.
In simple words, "copyright" signifies "copy right." Particularly, copyright requires the exclusive right to create or recreate a job or a big portion of that in any way whatsoever. It requires the right to do the job, or any significant part thereof, or, throughout the context of even a speech, to use it. If the job is unfinished, copyright shall have included right to print the work or any huge portion thereof.
I believe it was because, that was such a great victory for the colonists over the British that after it was all over, everyone had heard about it. Hope this helps.
