Asking for advice on the history of the three principalities that make up Latvia: Ratglai, Kuzram and Vededim.

National flag: Red symbolizes the patriotic spirit of having the courage to sacrifice for the motherland; white symbolizes the yearning and desire for peace and tranquility.

National emblem: The sun symbolizes the Principality of Ratglai; the red lion symbolizes the Principality of Kuznam; the gryphon symbolizes the Principality of Vededim; and the three gold stars symbolize the three principalities in history. Unify the country; the oak branch at the bottom symbolizes peace and freedom.

In 9000 BC, the earliest human activities occurred in La, belonging to the Europa race. Class society emerged in the 5th century AD. Early feudal principalities were established from the 10th to 13th centuries. From the end of the 12th century to 1562, it was occupied by the German Crusaders and later belonged to the Livonian regime. From 1583 to 1710, it was divided between Sweden and the Principality of Poland-Lithuania. The Latvian nation was formed in the early 17th century. From 1710 to 1795, it was occupied by Tsarist Russia. From 1795 to 1918, the eastern and western parts of Latvia were divided by Russia and Germany respectively. Independence was declared on November 18, 1918. In early 1920, the political power was seized by the national bourgeoisie, and on February 16, 1922, the establishment of the Bourgeois Democratic Republic was announced in Latvia. In May 1934, fascists launched a coup in Latvia and established a military dictatorship. The secret protocol of the non-aggression pact signed by the Soviet Union and Germany on August 23, 1939 stipulated that Latvia was included in the territory of the Soviet Union. On October 5, 1939, the Soviet government signed a treaty of friendship with Latvia. In June 1940, the Soviet army entered Latvia in accordance with the Molotov-Ribbentrop Secret Supplementary Protocol and established Soviet power. On July 21 of the same year, the Latvian Soviet Socialist Republic was established on August 5. Incorporated into the Soviet Union. In the summer of 1941, Hitler attacked the Soviet Union and occupied Latvia. From 1944 to May 1945, the Soviet Red Army liberated all of Latvia and re-integrated it into the Soviet Union. On February 15, 1990, Latvia adopted a declaration of restoring national independence, and on February 27, it restored its previous flag, national emblem and national anthem. On May 4, the Supreme Soviet of Latvia officially adopted the "Declaration of Independence" and changed the country's name to the Republic of Latvia. On August 22, 1991, the Supreme Soviet of Latvia announced that the Republic of Latvia had restored its independence. On September 6 of the same year, the State Council of the Soviet Union recognized its independence, and on September 17, Latvia joined the United Nations. In June 2005, the Latvian Parliament approved the EU Constitutional Treaty.