"원주율 문화" refers to the cultural phenomenon surrounding the mathematical constant π (pi), which represents the ratio of a circle's circumference to its diameter. This culture celebrates the significance of π in mathematics and its applications in various fields, including science and engineering. Events and activities often take place on Pi Day, celebrated on March 14th (3/14), to honor this important number. In South Korea, "원주율 문화" has gained popularity through various initiatives, including competitions, educational programs, and art projects that highlight the beauty of π. These activities aim to inspire interest in mathematics and promote a deeper understanding of its relevance in everyday life.