February 5 - Post it notes

In 1968 Dr Spencer Silver, a scientist at 3M, developed a "low-tack" reuseable, pressure-sensitive adhesive. For five years, Silver promoted his invention within 3M, both informally and through seminars, but without much success. In 1974, a colleague of his, Art Fry, who had attended one of Silver's seminars, came up with the idea of using the adhesive to anchor his bookmark in his hymbook. The idea was now mature and 3M launched the product in 1977, but it failed as consumers had not tried it so a year later they issued free samples and 90% of people who tried them said that they would buy the product. By 1980 the product was being sold nationwide in the US and now they're everywhere.

I've chosen to use post it notes on the page of my book, and made it look like they've been pinned to a corkboard. The story abot Harvey Milk is on the top part of the page and the notes overlap so you can't read the story from this pic.