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.
Flip chart
The earliest known patent of a flipchart is from May 8, 1913. Flip charts have being in use from the 1900s, the earliest recorded use of a flip chart is a photo from 1912 of John Henry Patterson (1844-1922), NCR’s CEO while addressing the 100 Point Club standing next to a pair of flip charts on casters. The flipchart we know (on a small whiteboard) was invented by Peter Kent in the 1970s. Peter Kent was the founder and CEO of the visual communications group Nobo plc, and it is believed that they were the first company to put the large pieces of paper over whiteboards, rather than over other materials.