Assaat Datuk Mudo, known as Mr. Assaat, was born in Banuhampu, Agam, West Sumatra, Dutch East Indies. He was the only President of the Yogyakarta-based Republic of Indonesia before it became the part of the United States of Indonesia, and was in office from December 1949 until August 1950. He and a number of Indonesia founders, fought for the independence of Indonesia from the Dutch.

The Central Indonesian National Committee, also known as the Central National Committee, was a body appointed to assist the president of the newly independent Indonesia. Originally purely advisory, it later gained assumed legislative functions. The Working Committee of the KNIP became part of the People's Representative Council when Indonesia became a unitary state in 1950.