The secret of silk-making was known only in china until about 550 bce. true or false?

The answer is True, the secret of silk making WAS known only in china until 550 B.C.E

The war began as a fight between mayans and the landowners of the country. the main causes of the guatemalan civil war was started by the greed of the united fruit company, the fear of communism, and the racism toward the  mayan  people.

Ithink that it’s mali