Some inland ethnic groups have longstanding resentment against the Seaside Grebo because of their relationship with the Americo-Liberians, who established dominance because of their relationship to United States groups and trade, as well as advantages of education and technology. First, the inland groups consider the Grebo foolish to have "sold" their traditional lands to the American colonists. Given the influence of the colonial period, the inland groups believe that the Seaside Grebo have allowed their language to become replete with English borrowings, although attempts to control and restrict language have generally been unsuccessful in most regions. Thirdly, in a difference typical between groups that are more or less assimilated in relation to a new people in an area, the inland groups have expressed dismay that the Seaside Grebo abandoned traditional ways to adopt fashions of Liberian or European Americans. For their part, members of the Seaside Grebo have been reported as referring to the up-country groups as "Bush" Grebo, pagan and barbarous.