Polish Notation, also known as prefix notation, is a mathematical notation in which operators precede their operands. For example, the expression "3 + 4" would be written as "+ 3 4" in Polish Notation. This format eliminates the need for parentheses to indicate the order of operations, as the position of the operators and operands inherently defines it. Developed by the mathematician Jan Łukasiewicz in the 1920s, Polish Notation simplifies the process of parsing expressions in computer science and programming. It is particularly useful in stack-based calculations, where the order of operations can be easily managed without ambiguity.