1919: March 1st Movement. Spurred by the sudden and mysterious death of Gojong. Declaration of Korean Independence. Nationwide peaceful demonstrations are crushed by Japanese military and police forces after two months. Governor-General Hasegawa resigns.
1949: The murder of Kim Gu. Kim Gu was a Korean independence activist who believed in, and fought for, a unified Korea. He strongly objected to the formation of a separate South Korean state. He was shot in his home by a South Korean Army lieutenant.
1972: start of the third Five-year plans of South Korea
1972: 12 August. The first Red Cross talks between North and South Korea are held.
1972: President Park Chung Hee declares Emergency Martial Law and changes Constitution in August, which may allow him to become the permanent ruler. This is similar to Gojong of the Korean Empire stating his country's governmental system as 'autocratic' in the constitution- for greater leadership and less opposition.
1980: Gwangju massacre. Martial Law is declared throughout the nation. The city of Gwangju becomes a battleground between dissenters and the Armed Forces (18–27 May). Some reports claim over 100 casualties.
1998: Taepodong-1, a two-stage intermediate-range ballistic missile is developed and tested by the DPRK. End of the Arduous March. It is possible that up to 3.5 million people did not survive the 'march'.
1999: The DPRK promises to freeze long-range missile tests.
2011: Kim Jong Il dies, Kim Jong un takes over as the Supreme Leader of North Korea. The National Intelligence Service discovers Communist spies who have been working underground for the DPRK for almost 10 years. One of the members was a former Democratic Party representative. Their mission was to influence the party named above and extract military secret information.
2012: 13 April: The Kim Regime of the DPRK tested a rocket, officially called "Unha-3", an expendable launch system developed from the Soviet Scud rockets. The rocket was to send a satellite, called "Kwangmyŏngsŏng-3", into orbit. The rocket failed to launch the satellite and fell into the Yellow Sea. The mission ultimately ended in complete failure.
2013: 8 December: Jang Song Thaek, uncle of North Korean Leader Kim Jong Un, was ousted from all powerful posts on various charges. The official Korean Central News Agency said the political bureau of the Central Committee of the Workers' Party of Korea stripped Jang of all posts, depriving him of all titles and expelling him and removing his name from the party.
2013: 12 December: North Korean Supreme Leader Kim Jong Un, executes his Uncle, Jang Song-Thaek, as a "traitor for all ages." Jang Son-Thaek's execution was said to be set up by his own wife, Kim Kyong-hui, Late Supreme Leader Kim Jong Il's sister. Jang Song-Thaek was considered to be the most powerful official in the DPRK Regime.
2016: 9 December: The impeachment vote of President Park Geun-hye took place, whilst 234 members in the 300-member National Assembly voting in favor of the impeachment and temporary suspension of her presidential powers and duties. Hwang Kyo-ahn, then prime minister, became acting president while the Constitutional Court of Korea was due to determine whether to accept the impeachment.
2017: 10 March: The court upheld the impeachment in a unanimous 8–0 decision, removing Park from the office.
2017: 10 May: Moon Jae-In sworn into office immediately after official votes were counted on May 10th, replacing Acting President and Prime Minister Hwang Kyo-ahn.
"An extreme manifestation of nationalism and the family cult was the revival of interest in Tangun, the mythical founder of the first Korean state... Most textbooks and professional historians, however, treat him as a myth."