1. Hypercomplex numbers, lie groups, and the creation of group representation theory

   • Thomas Hawkins

   OriginalPaper Pages: 243 - 287

2. Numbers and relations from ancient Andean quipus

   • Marcia Ascher
   • Robert Ascher

   OriginalPaper Pages: 288 - 320

3. The lunar theories of al-Baghdādī

   • Claus Jensen

   OriginalPaper Pages: 321 - 328