Which invention, first created during the Han dynasty but perfected
during the Tang dynasty, used the Earth's magnetic field to show
direction?

When was wheeled traffic permitted in early rome? daytime nighttime all day never

The articles of confederation allowed congress to: make and borrow money. declare war. create a postal service. all of these choices are correct.

After nine states had ratified the constitution by mid-1788, other states quickly followed. all thirteen states had to obey it. it became law in the united states. none of the states had to obey it.