Mystery behind Shivaji sword or Bhawani mata Sword?

Everyone of us heard about Great Shivaji's sword was gifted by goddess Bhawani mata. Some gave complete credit of Great shivaji achievement to Bhawani mata sword. Did anyone read true history of Great shivaji?.  Intentionally some classes of society propagate false history amongst dalit, poor and half literature people who blindly believe in what they used to heard from different digital media.