The line has been developed for the first time when 2011 as Japan by NHN Japan company which is a company that provides Internet services,The game system and information searching and cooperate with Naver Japan Corporation and company livedoor jointly developed by a wide range of applications to improve the usability of the user continuously. The word line was from japan after the earthquake in 2011 named Tohoku Earthquake and it makes the communication system of Japan have lost communication terrestrial people in the country to use the public telephone service was installed the program automatically to be used when born a disaster unexpected accident so a lot of people line up to wait for the service is the origin of the word line, which means a row.