The history of candle canning

I found this fascinating article on the history of canning today. Part of
the tradition of McCall's candle canning.

ABOUT CANNED FOOD: WHENCE IT CAME:
THE HISTORY OF FOOD CANNING

See also: Facts & Trivia: Cans; Can Openers; Canned Food.
Kitchen Tips: Shelf Life
Quotes about: Canning; Can Openers.

The canning process dates back to the late 18th century in France when the
Emperor Napoleon Bonaparte, concerned about keeping his armies fed, offered
a cash prize to whoever could develop a reliable method of food
preservation. Nicholas Appert conceived the idea of preserving... read more
here
http://www.foodreference.com/html/artcanninghistory.html