On average, pregnancies lasted 38 weeks from the day of conception to the day the baby was born, or about 40 to 41 weeks from the day of the women's last menstrual period. (The latter measure is more commonly used to determine a woman's due date.).
The act of copying or adapting someone elseâs work is a restricted act. Any adaptation will be legally regarded as a derived work; so if you simply adapt the work of others, it will still be their work, and they have every right to object you if publish such a work when they have not given you permission to do so.
The copyright on a derivative work covers only new material, appearing for the first time in the derivative work; it does not cover any preexisting material from the original. So the character of Superman is not covered by the copyright on the film Superman, since the copyright on that character pre-dated the movie; but any elements new to the film received their copyright from the date of Superman II's creation.