The culture of the Tagish people has its roots in both coastal Indian cultures and those from the interior (Tlingit and Athapaskan respectively). Trade and travel across the Chilkoot pass contributed to the mixing of these cultures. In the 19th and early 20th centuries, Tlingit-speaking peoples began to move in from the coast and intermarry with the native Tagish-speaking population. By the time outsiders first made contact in the 1880s, the majority of the people were bilingual, and the Tlingit language had replaced Tagish as the language of the majority.