Little soy was eaten in history
Only after WW2 soy became considered a food
This was also the time that soy sauce from Japan began to develop
Only after 1990 soy became popular
1917, Japanese companies organized to later become Kikkoman brand soy sauce
1936, USDA developed multiple strains of soybean varieties using hybridizaiton breeding
1941, USDA began farm subsidies and support for soy production
1942, concern about meat shortages and soy protein promoted in America
1957, Kikkoman began exporting to San Francisco
America becomes worlds largest soy producer
Brazil becomes worlds sencond largest soy producer
Europe become world's larges importer of soy