I grew up with a German mom who always wielded a bottle of Maggi, that ubiquitous MSG-ish seasoning used in soups, gravies, roasts, anything you can think of.
To my surprise, my new roommate, who's Vietnamese American, brought a ginormous bottle of Maggi to our kitchen. He said his family always used it and it was always referred to as soy sauce.
Interestingly, another old roommate, whose mother was also Vietnamese, also had a bottle of Maggi hanging around.
It was my understanding that Maggi was German/European in origin, but now I wonder if there is some polygenesis going on here. Where does Maggi come from? Who makes it? Why the popularity?