While black was the original colour for blackboards, many chalkboards now rely on a green porcelain surface, which reduces glare. As this green surface became more popular, the word chalkboard came into use instead of blackboard in the 1960s.

Alternatives To Chalkboards: Whiteboard Paint (Clear) You'll be using markers instead of chalk which is much more environmentally friendly. Your surface doesn't have to be black though. Have a writable surface in any colour you like. That's the best part of choosing a transparent whiteboard paint.

Does Chalkboard VOID in game injuries? Chalkboard will VOID all DNPs and all first-half injuries for NFL, NBA or Soccer games. We will also cover first period of NHL injuries and MLB position players if they do not record three Plate Appearances, or if a starting Pitcher is injured before throwing 45 pitches.