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.
Technological and industrial history of 20th-century Canada
The introduction of the flush toilet in the US and Canada in the 1880s created a market that inspired the invention of rolled toilet paper. The product was first produced in the US by the Albany Perforated Wrapping Paper Company in 1877. The US Scott Paper Company began manufacturing toilette paper in 1902 and by 1925 Scott Paper was the largest manufacturer of toilette paper in the world. As early as 1926 the Purex brand had been established in Canada and with the arrival of Scott Paper Canada in 1927 the White Swan brand was introduced.