Chisanbop, the ancient art of Korean finger math, was a significant cultural phenomenon known for its speed and simplicity.
The technique involves using fingers to represent numbers, with each finger having a specific value to aid in counting, adding, and subtracting.
Chisanbop's popularity peaked before the rise of social media, showcasing the viral spread of this Korean immigrant's mathematical system.
As calculators became widespread, emphasis shifted in math education from rote calculations to understanding mathematical concepts, diminishing the necessity of finger math skills.