Which of the following was NOT a building technology the river valley civilizations?

The 20th amendment, also called the lame duck amendment, decreased the amount of time between the presidential election and the inaugration of the new president. what are the advancements that allowed for this amendment?

In 150 to 200 words, use evidence to compare the ideas of the abolition of the slave trade and the abolition of slavery

What happened during the victorian age? a. all social classes lived near each other b. the middle class became much larger c. city populations began to decrease d. families continued to go to work together