Tally Marks from Around the World
Tally marks or hash marks are known as a unary numeral system. But in layman’s terms, it’s those lines people make when they’re keeping score or counting the days they’ve been behind bars. Generally, the first four numbers are a series of vertical lines followed by the fifth number which is a line across the first four number lines. But this chart shows that tally marks are different in various parts of the world. Some even look like they’re out of this world.