I have to say B. The rest were concepts made in Greece, by Greek philosophers, politicians, or mathematicians. An example for an advancement in math is the Pythagorean Theorem. I hope this helps!
Answer:
Railroads construction is your answer.
Explanation:
Answer:
C: He developed new trading partners.
Songhai's wealth and power were derived from <em>c. the merchant crossroads and cities of the middle Niger.</em>
- Trade brought wealth to the Songhai kingdom. It also sustained its power. It enabled the king, Sonni Ali, to expand his kingdom, creating stronger armies from the wealth derived from trade.
- The Songhai's wealth was also increased because of its large territory, through which the trans-Saharan trade network passed. The kingdom was blessed with mineral mines, extensive rivers, grassland, and many natural resources.
Thus, the wealth and power of Songhai were not derived from its extensive mines, Timbuktu's reputation, or the tribute received from subjects alone. But its wealth and power flourished because of the merchant crossroads and cities of the middle Niger.
Read more about the wealth and power of Songhai kingdom at brainly.com/question/21952777
Roanoke<span> Island was the site of the </span>Roanoke Colony<span>, an English settlement initially established in 1585 by Sir Walter Raleigh. A group of about 120 men, women and children arrived in </span>1587<span>. hope that helped</span>
