1.  International Conference dedicated to 150th Birthday of SOFIA KOVALEVSKAYA

2.  Sonja Kovalevsky Festival at the Department of Mathematics, Stockholm University, january 2000.

3. Sonia Kovalevsky Festival Mathematics in the World Around Us Syracuse University Fall, 1999

4. 8th Annual Sonia Kovalevsky Day Thursday, April 3, 1997 Rivier College, Nashua, NH

5. Celebration of Women in Mathematics Elizabeth City State University