i need an explanation for this seo complications may be shit

i need an explanation for something
5 years ago i rewrite an article ,old one ,in another website ,it was long article ,it ranked well in google without seo or backlinks nor asingle share on facebook .
it gave me from google 60000 views and counting till now .
back then ,i didnot know anything about seo,backlinks….etc
all the other sites are very well known sites and the article posted in there has good back links, shares everywhere
simply ,the article was about the differece between…

i need an explanation for this seo complications may be shit