2001: The 606th compound was one that contained arsenic and was called arsphenamine. — Leslie Iversen, Drugs: A Very Short Introduction (Oxford 2001, p. 9)

Sequential logic is used to construct finite state machines.

He creaked to and fro, tiptoing up nearer heaven by the altitude of a chopine […]

Because their wood contains so much water, and fallen baobabs decompose so quickly, the trees are poor fossilizers.