Jamsil Indoor Stadium is an indoor arena located in Seoul Sports Complex.

Construction began on December 1, 1976, and was completed on April 18, 1979, with 11,069 seats installed.

It is used as an indoor ball game stadium such as basketball, volleyball, and handball, and various performance events are also held.

It was also used as an indoor football stadium in 1985. It was used as a basketball and volleyball stadium at the 1986 Asian Games and at the 1988 Summer Olympics.

The Baekje Cultural Festival originated in 1955 when Buyeo-gun residents established an altar in Buyeo Mountain Fortress and offered a memorial service to the Three loyalist of Baekje.

It has been held simultaneously in Daejeon, Gongju, and Buyeo since the 20th anniversary of 1974, and has been held in Gongju for one year after the decision of the Baekje Cultural Festival Improvement Committee in 1979.

This local festival is organized by Buyeo-gun or Gongju-si and organized by the Baekje Cultural Promotion Committee to have the characteristics of traditional cultural festivals.​

More than 60 events will be held as major events, including the National Sijo Gyeongchang Contest, the Palace Contest, the Fireworks Festival, traditional folk performances, Baekje history and culture experiences, and academic seminars.

In particular, King Munju's Ungjinseong's Cheondo Ceremony and the disguise parade of Baekje Culture, where more than 5,000 people participate, is a central event that reproduces and inherits Baekje culture.​

The April 19 Revolution or the April Revolution is an anti-dictatorship struggle and revolution that expanded to large-scale citizens across the country, including student protests calling for the invalidity of the election and re-election in protest of the ruling Liberal Party of the Republic of Korea's vote-counting scheme on April 19, 1960, to elect Lee Ki-bung as vice president.

The Busan Ilbo reported that Kim Joo-yeol, a student who recently entered Masan Commercial High School after graduating from Namwon Middle School in North Jeolla Province in 1960 after he participated in the March 15 Masan uprising, was missing 27 days after the March 15 election was invalid, and the protests intensified nationwide when a tear gas shot by a police officer in his left eye was embedded in the sea off the central pier in Masan.

On April 19, police opened fire on protesters who flocked to the presidential residence, the Gyeongmudae, and after the shooting, the protesters armed with guns and fought back. President Rhee Syng-man, who faced national resistance and the military command's refusal to mobilize force, announced the resignation on April 26, leading to the collapse of Rhee Syng-man's Liberal Party regime, and as a result of this revolution, the Second Republic was launched on June 15 (the June 15 constitutional amendment).

It was designated as the 1974 statutory anniversary in order to honor the spirit of the April 19 Revolution, inherit and develop the 4/19 Democratic Philosophy, realize a defined society, and mourn the spirits of the victims.

Her Majesty Queen Elizabeth II and the first lady Kim Dae-jung as president and first lady of three nights and four days from 22 to April 19 at the invitation of the state visit our country.

The visit is the first of its kind for a British head of state since the two countries established diplomatic ties in 1883.

On April 21, the queen, who visited Andong Hahoe Village and Bongjeongsa Temple, the home of Confucianism, was delighted to receive the Korean traditional birthday prize carefully prepared by Hahoe Village on the occasion of her 73rd birthday and taste Korean food with chopsticks.

On April 20, 1953, resident 33 were landing on Dokdo and Ulleungdo to Dokdo until December 1956, in order to defend a Dokdo a volunteer activities by holding the guards.

The government of the Republic of Korea of Dokdo in August 1954, on September 15, and a lighthouse and resident posts and on the Eastern Island 'The Dokdo ' stamps three species in the sale of two million copies.

Dokdo is a police department, North Gyeongsang Province on December 31, 1956 a volunteer guard of gimyeongbok, gardens, seogijong, gardens, Lee Kyu-hyun, gardens, garden, let me get this, hwangyeongmun a total of nine.Ulleung Ulleung absorbed into the Dokdo guards and police station by police specially hired as a police officer.

On April 21, 1962, the 1st Silla Cultural Festival was held in Gyeongju.

It aims to introduce and introduce a splendid cultural heritage at home and abroad by passing on and developing the culture and arts of the millennium of Silla.

It is included for the purpose of honoring the gift of the name that inherited and saved the spirit of Hwarang (Private training group for youth in the Silla era) and contributed to the cultural and arts of Silla.

The Saemaeul Movement began on April 22, 1970 with the direction of President Park Chung-hee at the National Local Ministers' Meeting.

Specific plans were established on May 6, 1970, and have spread to nationwide movements since 1973.

In the early days, the government-led development projects for rural areas were carried out, and from the 1980s, they were changed to private-led and expanded to urban areas.

The movement was carried out with the aim of accelerating national development by promoting the basic spirit and practice of hard work, self-help and cooperation nationwide.

The first inter-Korean summit in 2018 marks the third summit between the Republic of Korea and the Democratic People's Republic of Korea.

On April 27, 2018, it was held at the House of Peace within the southern section of the Joint Security Area of Panmunjeom.

President of Moon Jae-in and the Democratic People's Republic of the Secretary of State Kim Jong-Un, and both sides of the delegation attended the talks. The slogan is peace, a new beginning.

"Chungmugong Yi Sun-sin's Birthday" is an anniversary established to promote the patriotism and loyalty of Admiral Yi Sun-sin, who was born on April 28, 1545, and to promote the spirit of national independence.

The events in honor of Admiral Yi Sun-sin began shortly after his death and have continued to this day.

Since 1945, the festival has been held annually under the auspices of the Chungmugong Memorial Foundation. Since the 1960s, Yi Sun-sin was regarded as a hero of the old country and a symbol of patriotic soldiers.

The Hongkou Park incident occurred on April 29, 1932, when independence activist Yun Bong-gil threw a bomb at Hongkou Park in Shanghai, China, killing or injuring key figures in the Japanese Empire.

This began to be reported around the world, and major newspapers around the world surprised the world by reporting it extensively on the front page.

At the time of the first report, it was mostly recognized as an anti-Japanese struggle or Japanese revolutionary activity caused by Chinese, but the following day, it was revealed that it was an anti-Japanese movement by Korean youth Yoon Bong-gil.

Patriot Yoon Bong-gil (21 June 1908 – 19 December 1932) who had already entered the rural enlightenment movement at the age of 19 opened a night school to fight illiteracy and promote national consciousness, including Hangeul education.

However, recognizing the limitations that the Enlightenment Movement alone cannot achieve independence, he is seeking asylum in China.

Patriot Yoon, who met Baekbeom Kim Gu there, agreed to join the Korean Patriotic Corps and plan to live in Honggu Park with Kim Gu.

It is a legal anniversary for workers from each country to strengthen solidarity in order to improve poor working conditions and improve their status.

South Korea will set May 1 as Labor Day according to the 'Act on the Establishment of Labor Day', and this day will be paid holidays under the 'Work Standards Act'.

King Yeongchin lived a fresh life like the fate of a slanted country.

He became the last crown prince of the Korean Empire and succeeded the 28th royal throne of Joseon, but when his brother and predecessor King Sunjong ascended, the country had already disappeared and the throne to succeed was missing.

He was taken to Japan at the young age of eleven, married a Japanese royal, Yi Bang-ja, and stayed in Japan for more than 50 years until he returned home in 1963.

He returned to Korea in November 1963 for the first time in 56 years, but lived in a hospital for seven years after returning to Korea.

Yi Bang-ja, the widow, died on April 30, 1989 while managing Myeonghwiwon while protecting Nakseonjae of Changdeokgung Palace.

Seoul Grand Park is a public park in Gwacheon, Gyeonggi-do, South Korea.

Seoul Grand Park, which was opened in 1984, was opened when the zoo and amusement facilities of Changgyeongwon were relocated to Gwacheon-si, Gyeonggi-do as part of the restoration project of Changgyeonggung Palace in Seoul

At that time, the construction cost was 98.5 billion won, which was completed five years after the construction began.

There are the largest zoos and botanical gardens in Korea, and Seoul Land, an amusement park.

The Olympic Boulevard, which began construction in 1982, was one of the 5th Republic's comprehensive development projects.

It was constructed to deal with the demand for transportation south of the Han River by establishing or improving a 37km-long motorway along the Han River.

The road was also aimed at connecting Gimpo Airport to Jamsil Sports Complex (Olympic Main Stadium), located in Jamsil, along the Han River, to transport foreigners at the 1986 Asian Games and the 1988 Summer Olympics.

As a result, unlike Gangbyeon Expressway, the road south of the Han River was named Olympic Boulevard.

The preferential treatment for senior citizens was implemented by the then Ministry of Health and Social Affairs in 1980 to promote welfare for senior citizens as part of its social welfare policy.

On May 8, 1980, the Ministry of Health and Welfare enacted and promulgated the preferential treatment for senior citizens, and the following year, the Welfare of the Elderly Act was enacted in 1981.

A typical preferential treatment system for senior citizens that has been in place so far is the free subway system. Older people living in urban areas benefit greatly from the free subway system.