/soy/ - Soyjaks

So what i’ve gathered so far from studying in archives is that soyposting was most prominent in 2017-2019 on 3 4chan boards (ordered by activity of soyposting), /v/, /tv/, and /int/.

Why these three boards? Well i will guess Soyposting on /v/ was extremely popular, because it was a laughably easy way to bait Nintendo fanboys on /v/ at the height of the Nintendo-Sony console war. This means the earliest soyposters in history were sony fanboys on /v/.
Soyposting on /tv/ was also popular because many soyboys at the time were superhero film fans or liked movies in general. It became a way to bait anyone who liked a form of movie that you didn’t like. Also it was home to the first two traced soyjaks (a24 and soyprano) and chad’s cord was there. This is also where some parts of soy culture originated in such as sneed.
Soyposting on /int/ was popular because it was the board soyjaks originated in (obviously) and people quoted anyone they didnt like.

But what i am wanting to ask is, when did the soycords on 4chan come in and revolutionize the meme? I think i have studied enough of december 2017-march 2018. I need to go further now.