__.__.1911
foundation as Ballspielclub Sandersdorf
__.__.1933
integration of SV Sandersdorf
__.__.1945
dissolution after World War II
__.__.1946
new foundation as Sportgruppe Sandersdorf
__.__.1947
renaming to Betriebssportgemeinschaft Werk Hermann Fahlke Sandersdorf
__.__.1948
renaming to Betriebssportgemeinschaft Aktivist Sandersdorf
__.__.1957
integration in BSG Chemie Wolfen as second team
__.__.1959
separation as Betriebssportgemeinschaft Chemie Sandersdorf
__.__.1990
new foundation as Sportgemeinschaft Chemie Sandersdorf as part of german reunification
__.__.1991
renaming to Sportgemeinschaft Union Sandersdorf