The Native Authority Ordinance of 1916 introduced direct taxation into Yorubaland and thereby

The Native Authority Ordinance of 1916 introduced direct taxation in Yorubaland, which means that people had to pay tax directly to the government. This had the effect of involving the people more directly in the colonial administration, as they were now required to pay taxes to the government. It also led to the appointment of more British officials to help collect the taxes and administer the colonial government. This increased the influence of the colonial government in Yorubaland and reduced the power of the traditional rulers, such as the Oba, who previously had more control over their own territories.