On 8 May 1819 Schmaltz signed the Treaty of Ndiaw with the Brak of Waalo, which resulted in the creation of a series of commercial posts along the Sénégal River(Bakel, 1820 ; Dagana, 1821 ; Merinaghen, 1822 ; Lampsar, 1843 ; Sénoudébou, 1845).
Merinaghen |