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How did Mandarin become the official language? All of the official spoken languages were once dialects. Mandarin was one of the 10 major dialects in China and it officially became the national language for China in 1911 after Dr. Sun Yat Sen overthrew the Qing Dynasty.
Answer:
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<span>Eight years after the U.S. Supreme Court ruled unanimously that racial segregation in public schools was unconstitutional, in the 1954 case of Brown v. Board of Education of Topeka, he penned this cartoon expressing his dismay at the country's slow progress toward educational integration.</span>
Tile 1 is “transverse wave”
And tile 2 is “longitudinal waves.”
