Nowadays, society is developing very rapidly. From decades ago to the present day, tremendous progress has taken place in both technology and lifestyle. People didn't even have a phone before. You can only contact others through direct conversation or by letter. Now that people have smartphones, you only need to swipe your finger to contact anyone. It used to take several days for people to travel from one country to another. Nowadays anyone can travel anywhere in the world in just a few hours. While all of us are enjoying the convenience provided by modern society, have we lost connection with our past? Before these technological advancements, how did people live their lives? The purpose of this book is to show the difference between modern society and the past. The hope is that people can find things that we have lost amidst these rapid developments.