The Articles of Confederation comprised the United States’ first constitution, lasting from 1776 until 1789. The Articles established a weak central government and placed most powers in the hands of the states.
Under the Articles, the US economy faltered, since the central government lacked the power to enforce tax laws or regulate commerce.
Shays’s Rebellion, an uprising of Revolutionary War veterans in Massachusetts that both the state and national governments struggled to address due to a lack of centralized military power, illustrated the need to create a stronger governing system.
D. Pullman car was a train car. Standard time was used by railroads so trains would not crash into each other. Standard gauge was the size of Tracks so any railroad could use it.