I don’t know how many you needed
1926.251 miles from Japan for the top to the bottom
Over the last 20-25 years there has been many terist attacks around the around the world like 9/11 the bombing of Pearl Harbor and many more but now we have not seen or heard of any terist but they did catch some so in my opinion it reduced.
Answer:
Economies begin to develop because people now had goods and services to trade.