They introduced the concept of long - term storytelling in comics. Before that, comics were often more one - off or short - lived stories. With multipart stories, like 'The Yellow Kid', comic creators could develop more complex characters and plotlines. This led to more engaging and in - depth stories that could span weeks, months or even years, which in turn attracted a more dedicated readership. Also, it influenced the business side as it created a model where readers would keep coming back for the next part, increasing sales and the overall viability of the comic industry.
First multipart comic stories increased the popularity of comics. They made readers eager to follow the story over multiple installments.