Social stratification<span> is a society's categorization of people into </span>socioeconomic<span>strata, based upon their occupation and </span>income<span>, wealth and social </span>status<span>, or derived power (social and political). ... Moreover, a social stratum can be formed upon the bases of kinship or caste, or both.</span>
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The xun (simplified Chinese: 埙; traditional Chinese: 塤; pinyin: xūn; Cantonese= hyun1) is a globular, vessel flute from China. It is one of the oldest musical instruments in China and has been in use for approximately seven thousand years.[] The xun was initially made of baked clay or bone,and later of clay or ceramic. It is the only surviving example of an earth(also called "clay") instrument from the traditional "eight-tone" (bayin) classifications of musical instruments (based on whether the instrument is made from metal, stone, silk, bamboo, gourd, earth, hide, or wood
Explanation:
Historically was the only successful slave revolt that resulted in the founding of an extant country.
