Her Royal Highness Princess Maha Chakri Sirindhorn started her academic career teaching history at Chulachomklao Royal Military Academy (CRMA) in 1980. From the starting point as a lecturer in the Department of Law and Social Sciences in the Academic Division of CRMA, Her Royal Highness had duties and responsibilities just the same as other CRMA' s personnels. The Department of History was formally established in 1987 and Her Royal Highness has become the Director of the Department until now. In 1996, Her Royal Highness was promoted to the highest military rank "General", and following in 2000, was granted the professional title as "Professor" due to her insights and knowledge.