Answer:American and Canadian railroads
Explanation:
At exactly noon on this day, American and Canadian railroads begin using four continental time zones to end the confusion of dealing with thousands of local times. The bold move was emblematic of the power shared by the railroad companies.
Shi Huangdi had the Great Wall of China built to protect the Chinese states and borders against the raids and invasions of the various nomadic groups of the Eurasian Steppe. This included the Mongols to the north, which had been very powerful during the rule of Genghis Khan. The other purposes of the Great Wall were border controls, allowing duties on goods during the period of the Silk Road, regulation and encouragement of trade and the control of immigration and emigration.
Answer:
Dred Scott was an enslaved African American, and his court case for freedom raised hostility between the south and the North.
Explanation:
Dred Scott was born inside slavery, and from 1833 to 1843, he resided in Illinois, where slavery was forbidden. Upon coming to Missouri, Dred Scott appealed for his freedom from slavery, insisting that his residence in non-slavery territory gave him free. As the case reached the Supreme Court, the tension further increases between North and South. Since the 1820s, two parties had compromised on the issue of slavery's expansion (the Missouri Compromise). The North was not happy with the court decision as they believed the case gave Southern slaveholders growing power. The Southerners pleased as they believed the North had no right to interfere with matters related to slavery.
The purpose for organizing labor unions is to help protect the rights of the workers.
To make your point in a peaceful manner.