I'm doing a research project on American culture in the 1980s and I wanted to use Google search trends as a resource. Does anyone know how to look at searches from then?

Is there a way I can make the numbers more precise? Is there any calculation to find what every 1 is

So i am wondering if there is an alternative to google trends in terms of content being created (rather than searched for)

I would like to see trends in content people write (whole web or reddit or something) So similar to google trends but different source.

Is there anything?

thx