While the tomato-based sauce we know today emerged in the early 19th century, the original condiment - which bears no resemblance to the Heinz we know - was invented hundreds of years before that.
BT ILLUSTRATION: YU KEXIN
FOR more than a decade now, my husband has been harping on about how "ketchup in Singapore tastes different from ketchup in Canada" (his birthplace). Each time, I've rolled my eyes and said something to the effect of: "Dude, you're nuts. Ketchup is ketchup."