What is another name for lines of longitude is meridians

A2A — They are also known as “meridians.” Zero degrees longitude is called the Prime Meridian, as it is the line from which other meridians are calculated. Bonus Another name for lines of latitude is “parallels,” so called because lines of latitude run parallel to each other (lines of longitude do not.)

maybe you need to work on the pipes in the house. i am just saying this because you did not give any details.

i'd assume india mainly because of how isolated japan was.   plus it is a whole china away.