Mongolian Revolution: At the country's first open pro-democracy public demonstration, Tsakhiagiin Elbegdorj announces the establishment of the Mongolian Democratic Union.

The Mongolian Revolution of 1990, known in Mongolia as the 1990 Democratic Revolution, was a peaceful democratic revolution which led to the country's transition to a multi-party system. It was inspired by the economic reforms of the Soviet Union in the late 1980s and was one of the many revolutions of 1989. It was led mostly by young demonstrators who rallied at Sükhbaatar Square, in the capital city Ulaanbaatar. The main organisers of the demonstrations included Sanjaasürengiin Zorig, Erdeniin Bat-Üül, Davaadorjiin Ganbold, Tsakhiagiin Elbegdorj, and Bat-Erdeniin Batbayar.

Tsakhiagiin Elbegdorj is a Mongolian politician and journalist who served as President of Mongolia from 2009 to 2017. He previously served as prime minister in 1998 and again from 2004 to 2006.

The Democratic Union Coalition was a coalition of political parties in Mongolia. Its primary constituents were the Mongolian National Democratic Party and the Mongolian Social Democratic Party, and its core policies were the implementation of political and economic reforms in the post-communist period. Its chairman was Tsakhiagiin Elbegdorj in 1996–2000. The coalition later became the foundation of the current Democratic Party of Mongolia.