Brazilian flag: green represents the dense jungle covering Brazil, and yellow represents the rich mineral resources. The lower part of the celestial globe represents the sky color of Rio de Janeiro, the capital when the national flag was drawn up.

Italian flag: green symbolizes hope, white symbolizes faith, and red symbolizes kindness.

Greek flag: In terms of its historical significance, white and blue have been the representative colors of Greece since ancient times. A flag consisting of blue and white, a cross pattern and parallel stripes. It is also the old flag of Greece. Nine blue and white parallel stripes symbolize the slogan "ε λ ε υ θ ε υ? α ? Θ? νατο? "(Give me liberty or give me death) has nine syllables (the other is that nine strips in Greek mythology symbolize nine literary goddesses (in Greece, 9 always represents the scope). Blue Cross Symbol 182 1 The white and blue cross flag waved by the Bishop of the Northern Yard of Batraguirma during the Turkish independence uprising.

British flag: red St. George's Cross with blue background and white border and red and white St. Andrew's Cross.

German flag: The black, red and gold flags first appeared in/kloc-0 at the beginning of the 9th century, and/kloc-0 was officially used in the German Revolution in 848. The short-lived Frankfurt National Assembly (1848–1850) proposed to use the tricolor flag as the flag of the GDR. The Weimar Republic established after World War I also used tricolor flag as the German flag. After World War II, both East Germany and West Germany used tricolor flags as national flags. It was not until 1959 that East Germany added the national emblem to the tricolor flag, and the national flags of these two countries were exactly the same. After Germany was unified from 1990 10 3, the tricolor flag of black, red and gold became the national flag of Germany again.

The German flag is not always dominated by black, red and gold. 1866 After the Puao War, the North German Confederation led by Prussia adopted the black, white and red tricolor flag as the federal flag. The black, white and red tricolor flag later became the flag of the German Empire (German Second Reich) after the reunification of Germany in 187 1 and was used until the end of World War I in19/8. From 65438 to 0933, Nazi Germany also briefly used black, white and red flags.

The three primary colors black, red, gold and black, white and red are of great significance in German history, and they are often interpreted differently. Today's black, red and gold represent the democratic political system after World War II, and now the German Federation and the Freedom Alliance: not only the freedom of Germany, but also the democratic freedom of the German people.

Swiss flag: 13 century (1273). During the period of the Holy Roman Empire, Rudolph I of the Habsburg family was elected as the emperor of the Holy Roman Empire. After Rudolph I succeeded to the throne, he devoted himself to expanding the royal power and family power, and the autonomy of all Swiss freemen was seriously threatened. Under the strong pressure of Habsburg dynasty, 129 1 August, three valleys in Switzerland. At this time, it has been decided to use the national flag with a red background and a white cross. However, when the Federation was founded, it was decided to draw four crosses with the same size on the red background, which was later revised into today's form in 1889.

Generally speaking, the national flags of European and American countries are basically derived from traditional culture.