Shiva and Shakti were not historical figures ever

Indus Seals prove that Shiva and Shakti cult existed before advent of Aryan or Havan Culture. Now the names can be of some historical figure like shiva was some warrior king or something like Rama is seen as God Vishnu but true shiva and shakti cult is worship of natural forces or better say cosmos. Wow, Isn't it brilliant that our ancestors found Big Bang theory then and these western scientist couldn't found till the modern era with machines? ha ha...