The answer is 1918' or if you are going to the nearest decade that would be the 1920's.
Answer:
The Civil War helped the Texas economy develop at a fast rate. For example, Texas developed a high-tech industry after a slump in oil prices, continued reliance on oil production which brought in more money for the economy, and had a boom and bust cycle of the oil industry.
A.they became convinced of the Patriot cause and switched sides in the conflict
The Civil War.
The Dred Scott decision is a shameful decision that rightfully angered abolitionists, deepened divides, and helped lead to the Civil War.