Since the 15th century, Europeans from countries such as Portugal, the Netherlands or later France settled in West Equatorial Africa and began trading in slaves, raw materials and art. At the end of the 19th century, France expanded its presence in Central Africa and established a protectorate over parts of present-day Congo, Gabon, and the Central African Republic. The extraction of raw materials such as ivory was accompanied by great brutality towards the local population, many of whom were enslaved. Europeans and locals are depicted on this ivory tusk carved by a local artist.