Gold countries can make the best use of resources by buying gold
Gutenburg's printing press made books cheaper and available to a larger variety of people. Before the printing press, books were very hard to make and they took a long time to produce.
Answer:
Kush began to fade as a power by the 1st or 2nd century AD, sapped by the war with the Roman province of Egypt and the decline of its traditional industries. ... Christianity began to gain over the old pharaonic religion and by the mid-sixth century AD the Kingdom of Kush was dissolved.
(credits to the rightful owner of these answers, I just hope this helps you :)
In 98 BC Rome expelled all non-Roman citizens (except slaves). It was a time in Rome when the non-Romans were not allowed to stay in the city unless they were slaves. Rome was a place of religion and history no foreign outsiders were allowed.
D: by trying out policies that might later affect the entire nation