<span>The U.S mail cars were connected to the Pullman cars so they could allow federal intervention to end the strike by letting railroad executives to claim the strike interfered with the mail.</span>
<span>The Han Dynasty promoted Confucian ideas</span>
D. Remained poor.
They experienced a period of economic stagnation following the independence. Making a lot of people remained poor despite being free from the European colonization. They need some time before they eventually make adjustments to implement a proper political system in place and develop their economy.
The correct answer is An era of nationalism and economic growth
After the war of 1812 Americans felt proud of their country and a strong sense of belonging. Also during the war, the British government cut America’s access to manufactured goods and this forced America to somehow gain strength and produce those products internally what made the country gain economic independence.