The height of the eastern empire of rome was during the reign of constantine or justinian

How do goods differ from services? (economics)

How does the battle of midway illustrate the importance of intelligence gathering and espionage in modern warfare?

In italy, the distance between milan in the north and palermo,sicily, in the south is about 550 miles. in the united states, the distance betweenboston, massachusetts, and savannah, georgia, is about 900 miles. do you think the american revolutionaries of 1776 in the 13 colonies faced some of the same challenges as the patriots who struggled for italian unity in the 1860s?