Three years before Abdu'l-Baha came to the United States, General Electric Edison introduced one of the country's first gadgets--the light bulb. It called that light bulb the "Mazda bulb." That name must have amused Abdu'l-Baha when he was traveling in the U.S. The name "Mazda" is close to "Hoda," the Persian word for "God."
It would be interesting to learn about anytime when Abdu'l-Baha had to deal with changing a light bulb.