In those days , opportunities were rare for Japanese citizens to interact with people from overseas .
Motorways and Shinkansen bullet train lines constructed at the time helped form the foundations of Japan 's economic growth , and remain indispensable to the country 's economic and cultural infrastructure .
In those days , opportunities were rare for country citizens to interact with people from overseas .
Motorways and Shinkansen bullet train lines constructed at the time helped form the foundations of Japan 's economic growth , and remain indispensable to the country 's economic and cultural infrastructure .