The society was founded as the International Society of Soil Science (ISSS) on 19th May 1924. The IUSS is a scientific union member of ICSU since 1993. For a historical overview of the ISSS-IUSS click here . The scientific activities of IUSS are undertaken through 4 Divisions and each Division has 4 to 6 Commissions. The Divisions and Commissions are headed by a chairperson and two vice chairs.