Whiteboard
Albert Stallion invented whiteboards while working at Alliance in the 1960s. Alliance (now known as PolyVision) produced enameled steel for architectural cladding, but Stallion noted it could also potentially be used as a writing surface. Stallion later left Alliance to form his own whiteboard production company, MagiBoards.
Blackletter
The "Donatus-Kalender" (also known as Donatus-und-Kalender or D-K) is the name for the metal type design that Gutenberg used in his earliest surviving printed works, dating from the early 1450s. The name is taken from two works: the Ars grammatica of Aelius Donatus, a Latin grammar, and the Kalender (calendar). It is a form of textura.