Historical clue formulations

• Small source of protein — 2012-10-08
• Protein-rich legume — 2009-07-07
• Source of lecithin — 2007-09-22
• Versatile legume — 2004-08-30
• Oil source — 2004-03-26
• Hoisin sauce ingredient — 1999-12-11
• Vegetarian staple — 1998-11-21
• Tofu base — 1998-07-29