Why are dumbbells called dumbbells?

Search: dumbbell

Why: I need to buy some.

Answer: "Dumbbells" as a word originated in Tudor England, where athletes used hand-held church bells to develop the upper body and arms. These bells ranged in weight from a few ounces to many pounds. They would have made a great deal of noise, so the athletes removed the clappers so they could practice quietly; hence the name "dumb," as in no sound and "bell" – dumbbell. When strongmen started to make their own equipment, they kept the name, even though the shape changed. When athletes started making purpose-built equipment, they also kept the name.

Source: Wikipedia

The More You Know: Kettles were also available in various sizes, ranging up to those holding several gallons. Filled with sand or water, these too could be used for training.