History of Jigsaw puzzle.

I used to read about history of Jigsaw Puzzle. It was produced by a London engraver and mapmaker ,John spilsbury, in 1760. By cutting around boarder of country in map madeing of a hardwood . Resulting is educational tool for teaching geography to British children . and called it "dissection". In 1880, by using fretsaw people change calling"dissiction" to calling "Jigsaw Puzzles".

Later , manufacture change to use plywood instead hardwood ,glued on the front of wood, pencil tracings at the end of century. In the late 1800's cardboard puzzles were introduced and used for child puzzles until the 20th century die-cut was introduced.
In the early 1900's both card and wooden jigsaw were available. But wooden jigsaw puzzles were bought and played more than cardboard puzzles. Because wooden jigsaw puzzles more durable, other reason was manufacture trying to sell wooden jigsaw puzzles due to it make more profitable.
The Golden of jigsaw puzzles were in the 1920s and 1930s. Developing new technologies in rail and shipping including new marketing strategies were reason that jigsaw spread over in England and USA.
In addition to, those time was Depression but jigsaw puzzle sold so well . Because jigsaw puzzle was entertainment tool that was not highly price. People can buy it. Other reason it can be recyclable by passing to friend or family member.