Namamugi Incident
When Japan started slowly opening up to the rest of the world in the mid 19th century, Satsuma was one of the first domains to embrace Western culture and methods. However, tension quickly grew between the increasing invasiveness of Westerners in southern Japan. When the Namamugi Incident of September 14, 1862 occurred, political and ideological differences between the United Kingdom and Satsuma Province sparked outrage and quickly boiled into the Anglo-Satsuma War. Satsuma would ultimately lose, leaving way to increasing dissatisfaction with the Tokugawan government. The Meiji government would then take its place after the Tokugawan government was overthrown in the Boshin War. However, corruption in the Meiji government, which it originally helped establish, would then give birth to the Satsuma Rebellion of 1877. Despite their numbers, the Satsuma Domain was rapidly overpowered, and its defeat eventually resulted in the end of its dominance in Japan's southern sphere. The Satsugū dialect, which had a predominant role in samurai affairs and equally the police hierarchy system throughout Japan, steadily declined in influence following this defeat.