1737or1738-1815 1794?-1864 1849-1933 1852-1863 1877-1904 abūal-ʻabbāsaḥmadibnmuḥammad africa algeria aurélie biography eberhardt foreignrelations history ibrāhīm iniyās isabelle islam kingsandrulers picard religiousaspectsbambarajihād religiousaspectsumarianjihad religiouslife sufism tal tijānī tijānīyahmembers umar west women