Whiteboard
Whiteboards became commercially available in the early 1960s, but did not become widely used until 30 years later. Early whiteboards needed to be wiped with a damp cloth and markers had a tendency to leave marks behind, even after erasing the board. Dry-erase markers for whiteboards were invented in 1975.
White Ware
White Ware or "Vaisselle Blanche", effectively a form of limestone plaster used to make vessels, is the first precursor to clay pottery developed in the Levant that appeared in the 9th millennium BC, during the pre-pottery (aceramic) neolithic period. It is not to be confused with "whiteware", which is both a term in the modern ceramic industry for most finer types of pottery for tableware and similar uses, and a term for specific historical types of earthenware made with clays giving an off-white body when fired.