The United States presidency of Ronald Reagan, also known as the Reagan administration, was a Republican administration headed by Ronald Reagan from January 20, 1981, to January 20, 1989.

Domestically, the administration favored reducing government programs and introduced the largest across-the-board tax cuts in American history. The economic policies enacted in 1981, known as "Reaganomics," were an example of supply-side economics. Reagan aimed to encourage entrepreneurship and limit the growth of social spending, as well as the reduction of regulation and inflation. Economic growth saw a strong recovery in the 1980s, helping Reagan to win a landslide re-election. The national debt increased significantly, however.

Regarding foreign policy, the administration was steadfastly anti-communist, calling the Soviet Union an "evil empire" and ending 1970s détente. Reagan accelerated the massive buildup of the military started by his predecessor, including an invasion of Grenada, the first major overseas action by U.S. troops since the end of the Vietnam War. The "Reagan Doctrine" controversially granted aid to paramilitary forces seeking to overthrow socialist governments, particularly in war-torn Central America and Afghanistan. Reagan also promoted new technologies such as missile defense systems in order to confront the Soviets and their allies. In diplomacy, Reagan forged a strong alliance with UK Prime Minister Margaret Thatcher, and he met with Soviet General Secretary Mikhail Gorbachev four times, aiming to shrink the superpowers' nuclear arsenals.

Ronald Wilson Reagan ( /ˈrɒnəld ˈwɪlsən ˈreɪɡən/; February 6, 1911 – June 5, 2004) was the 40th President of the United States, serving from 1981 to 1989. Prior to that, he was the 33rd Governor of California from 1967 to 1975 and a radio, film and television actor.

Born in Tampico, Illinois and raised in Dixon, Reagan was educated at Eureka College, earning a Bachelor of Arts degree in economics and sociology. After his graduation, Reagan moved first to Iowa to work as a radio broadcaster and then in to Los Angeles in 1937 where he began a career as an actor, first in films and later television. Some of his most notable films include Knute Rockne, All American, Kings Row, and Bedtime for Bonzo. Reagan served as president of the Screen Actors Guild, and later as a spokesman for General Electric (GE); his start in politics occurred during his work for GE. Originally a member of the Democratic Party, his positions began shifting rightward in the late 1950s, and he switched to the Republican Party in 1962. After delivering a rousing speech in support of Barry Goldwater's presidential candidacy in 1964, he was persuaded to seek the California governorship, winning two years later and again in 1970. He was defeated in his run for the Republican presidential nomination in 1968 as well as 1976, but won both the nomination and general election in 1980, defeating incumbent Jimmy Carter.

Song In (in hangul 송인, in hanja 宋仁) was a civil official in the mid-Goryeo era who became the intermediary founder of the Jincheon Song clan. His highest post was munha pyeongjangsa (문하 평장사). This was the highest government position in the period. Song In was responsible for administration, judicial affairs and economy in the district.

As he performed meritorious deeds during the King, he was conferred with Chanhwagongsin and Jincheonbaek. Baek was a position of politicians who were responsible for administration, judicial affairs and economy in the district. As the government created him Jincheonbaek, his family started regarding Jincheon as their origin. Hence, the family origin became Jincheon Song.

When he was in the position of Sangsanbaek, he tried to be just and fair in all the administrative affairs and strived to enhance the welfare of his people. He also focused on education for the youth and courtesy for people, which made his district famous for most excellent behaviors in the nation. After that, the people have long paid tribute to his feats.

Nancy Davis Reagan (born Anne Frances Robbins; July 6, 1921) is the widow of former United States President Ronald Reagan and was First Lady of the United States from 1981 to 1989.

Nancy was born in New York City; her parents divorced soon after her birth and she grew up in Maryland, living with an aunt and uncle while her mother pursued acting jobs. As Nancy Davis, she was an actress in Hollywood in the 1940s and 1950s, starring in films such as Donovan's Brain, Night into Morning, and Hellcats of the Navy. In 1952 she married Ronald Reagan, who was then president of the Screen Actors Guild, and they had two children. Nancy was the First Lady of California when her husband was Governor from 1967 to 1975. In that capacity, she began work with the Foster Grandparents Program.

Nancy Reagan became First Lady of the United States in January 1981 following her husband's election. She was criticized early in his first term largely due to her decision to replace the White House china, despite it being paid for by private donations. Nancy restored a Kennedy-esque glamor to the White House following years of lax formality, and her interest in high-end fashion garnered much attention, as well as criticism. She championed recreational drug prevention causes by founding the "Just Say No" drug awareness campaign, which was considered her major initiative as first lady. Always protective of her husband, more controversy ensued when it was revealed in 1988 that she had consulted an astrologer to assist in planning the president's schedule after the 1981 assassination attempt on her husband. She had a strong influence on her husband and played a role in a few of his personnel and diplomatic decisions.