Leonardo maybe didn't invent scissors. I've sure I've seen some in a museum, labelled 'Roman.' Long ago.   He might possibly have invented the modern form, pivoted, as opposed to the spring type, all in one piece. Wiki says at least 3-4000 years ago, for this 'shear' type.

The name Wendy appeared in an American census in 1828, long before the fantasy was written in 1904. Also in an English census in 1881, as a boys name. Wiki.

Dolphins attack sharks by ramming, too.