Before the invention of the combine, the binder was an essential harvesting implement that cut grain and bound the stalks in bundles tied with twine that could then be hand-gathered into shocks for threshing. Hundreds of thousands of farmers across the United States and Canada relied on binders and the twine required for the machine's operation. Implement manufacturers discovered that the best binder twine was made from henequen and sisal-spiny, fibrous...