Answer:
1. communication improvements
2. Embargo Act of 1807
3. new power sources
Explanation:
Hope it helps!
Have a great day/night! ^_^
<span>They traced an inheritance of dominion from the Western Roman Empire through the original coronation of the Frankish King Charlemagne as Emperor by Pope Leo III in the year 800 AD, after Charlemagne successful linked territories in Germany, France, and Northern Italy under his rule.</span>
