[Perdition]

History actually doesn't add to your base stat.
https://gyazo.com/cf09dfbbf3346d6543f71f22a4aff606

That there is a vampire with 1 VIT LE and 36 points in vitality. I reset my traits and took the Knight history, and that brought me to this.

https://gyazo.com/d1c20f28c71e1a40d2e63456749441e1

That's the same scaled VIT I get on the build calculator by adding 2 to my vit custom modifiers,

I also tested with SKI just in case. This is without a history trait selected https://gyazo.com/bdc6caf18d2c028c913c64e3e5e7e050

And then with Warrior history, 2 str 1 skill.
https://gyazo.com/0572a16b00a988c5dea9a39ea6dd6f66

This is with traits reset and just a mercury badge which also just increases skill by 1
https://gyazo.com/94123f6c2293dfb3d021aee75ccec93a
https://gyazo.com/1bfb653eb4d3f1d1f91e27b41e8f57fe