>>63149055What we call "greentext" by prepending the greater-than (>) symbol existed first in E-mail and then newsgroups and dial-up bulleting board systems.
Afterwards it came to internet bulleting boards, and was immediately taken into use by 4chan upon its conception in '03.
The only new thing 4chan introduced was not only using it for quoting text from an earlier poster, but for telling stories, shitposting and >implying.