Bu-Ma Democratic Protests Commemoration Day (South Korea)

The Busan–Masan Uprising or abbreviated, the Bu-Ma Uprising, was a series of demonstrations and popular uprising against President Park Chung Hee's dictatorial Yushin regime in South Korea. It took place between 16 and 20 October 1979 in Busan and Masan. Students from Pusan National University began demonstrations calling for an end to Park's dictatorship, following the regimes controversial decision to expel New Democratic Party chairman Kim Young-sam from the national assembly. On 17 October the protests grew to include citizens and spread to Masan on 18 and 19 October. It is also called the Busan–Masan Democratic Uprising or Busan–Masan Democratization Movement.

South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and the Sea of Japan to the east. Like North Korea, South Korea claims to be the sole legitimate government of the entire peninsula and adjacent islands. It has a population of about 52 million, of which half live in the Seoul Metropolitan Area, the ninth most populous metropolitan area in the world; other major cities include Busan, Daegu, and Incheon.

October 16 is the 289th day of the year in the Gregorian calendar; 76 days remain until the end of the year.