Education
Waseda University.
長沢 二郎
Waseda University.
He is credited with the invention of the modern Butterfly stroke. Nagasawa competed in the 1952 Helsinki Olympic Games and, between 1945 and 1956, he set five world records in the 200m and 220y butterfly. He was inducted into the International Swimming Hall of Fame in 1993 and later in life became an Olympic National Coach.
Jiro Nagasawa died on March 23, 2010 from throat cancer at the age of 78.