128 years ago today, on August 9, 1897 (July 12, 1897 lunar calendar), the International Congress of Mathematicians was held in Zurich, Switzerland. The International Congress of Mathematicians (ICM) is a quadrennial meeting of the international mathematical community. The first meeting was held in Zurich, Switzerland on August 9, 1897, with only about 200 people attending. Since then, except for a pause during the First and Second World Wars, it has usually been held every four years. So far, it has been held 21 times. The agenda of the International Congress of Mathematicians is determined by the advisory committee appointed by the International Mathematical Union. A group of mathematicians are invited to give a one-hour academic report at the conference and a 45-minute academic report at the sub-group meeting of the subject group. Any mathematician attending the International Congress of Mathematicians can apply for a 10-minute academic report at the sub-group meeting. Generally, it is divided into about 20 subject groups. The International Mathematical Union is responsible for three mathematics prizes so far: the "Fields Medal" established in 1932, the "Nevanliners Prize" in the field of information science established in 1982, and the "Gauss Prize" in the field of applied mathematics first awarded in 2006.