The people of Bima and the entire eastern side of Sumbawa speak what is known as Bima language (Indonesia: "Bahasa Bima" ; Bima: "Nggahi Mbojo"). From 1620 to 1958 it was the capital of the Bima Sultanate. In modern times, Bima is the largest regional and economic hub of Eastern Sumbawa with transmigrants from other parts of Indonesia, especially Java, Bali, and Lombok. It has a central downtown commercial zone. It is home to the Sultan Salahuddin mosque and the Sultan Salahuddin museum (former Bima Sultanate palace). It is connected by provincial road to Dompu and Sape.