Why do the stars represent the country?

The reason of the lyrics "56 constellations" of the song "Love China";

Around 270 BC, the ancient Greeks divided the visible part of the sky into 48 constellations, connected the main bright stars in the constellations with imaginary lines, imagined them as animals or people, and named them after fairy tales. At present, there are 88 cosmic constellations in the world.

The constellations in the lyrics use metonymy (metonymy: only metaphor refers to ontology) to refer to the nation.

The reason why the lyrics in memory are "fifty-six nationalities";

"Fifty-six nationalities" is more acceptable and popular, so it is automatically changed to "fifty-six nationalities" in the process of teaching singing, which leads many young people to think that it is fifty-six nationalities, not constellations.

Many people suspect that our memory is wrong, and even suspect that our memory has been tampered with. Actually, it's nothing This situation may also be a mental cognitive error. In many places, we will see 56 ethnic groups, so we will keep this sentence in mind and slowly and imperceptibly affect our memory. Similar things will be unconsciously brought into other things, which is why the 56 constellations will be recorded as 56 nationalities.

Baidu Encyclopedia-Love China