It would be more helpful to have a map, but based on the information I would say 1810. The text itself states that is when it was most populated.
B. china; 1941
The attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor.
The land mass that we know nowadays as New Zealand was discovered by explorers in Polynesia. This was then settled by the Maori that we know nowadays. It was discovered once again by Europeans in the eighteenth century.
