The kitten couldn’t find his way home because he was lost
I think that maybe people are saying different answers because there might have been many such laws. I will mention one example: the Diversity Visa Immigration: it means that people from Eastern Europe have a higher change of obtaining a visa due to a smaller population in the US than the western European Countries.
He was inspired to paint the slave ship after the publishing of the book named the history of abolishment of slave trade. It was a book by Thomas Clarkson.