Lineages could claim copyright of children and their works as derivative. Entire families could claim copyright of their descendants and all works related. Each new generation resets the timer on expiration if the copyright expirations still apply.
Anki is a FOSS flashcard program that is popular in language learning circles.
Lineages could claim copyright of children and their works as derivative. Entire families could claim copyright of their descendants and all works related. Each new generation resets the timer on expiration if the copyright expirations still apply.