This dispute is just one of many such little-known events; for example, another debate has been raging for centuries over who invented the symbol for zero, 0. In The Language of Mathematics ...

To determine if the monkeys were actually doing math or were simply recalling memorized patterns, the researchers tested the monkeys with another addition task utilizing the Tetris-like symbols.

To determine if the monkeys were actually doing math or were simply recalling memorized patterns, the researchers tested the monkeys with another addition task utilizing the Tetris-like symbols. If ...