Answer:
Dhaka, also spelled Dacca, city and capital of Bangladesh
Sputnik launch was a single event that started it
Yellow River valley China
C) Sam Houston holding a special vote over secession
EXPLANATION: Abraham Lincoln being voted President: March 4th 1861
Texas joining the Confederacy: March 2nd 1861
Sam Houston holding a special vote over secession: February 23, 1861
Confederate President Jefferson Davis taking office: November 6, 1861
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