, the man who planned Pearl Harbor increased my knowledge about the people of Japan because it introduced me to their culture, and the life and times in Japan before World War II. In Japan, the family is the basic unit of society. For example, if a Japanese has the unfortunate occurrence of producing only daughters, they will insist that one of their daughters husbands changes his last name to keep their daughter's last name alive. It was, also, not unusual for people to change their last names. Isoroku Tankano was born in 1884. In 1916, he ch ....