The first documented account of critical thinking is the teachings of Socrates as recorded by Plato.
(2) Over time, the definition of critical thinking has evolved.
Critical thinking is a means for separating truth from falsehood and reasonable from unreasonable beliefs.
It frequently involves finding flaws in the arguments of others, but that's not all that it's about.
Most people may not need such skills in their day-to-day lives, but the truth is that almost everyone will benefit from learning how to think more critically.
This does not only apply to our own beliefs, but also to all the ideas and claims that we regularly encounter.
This is a problem because disagreements can't be resolved if those involved don't recognize what their disagreement is really about - or worse yet, actually disagree on what they disagree about.
If those involved don't work that out, the only thing they'll accomplish by arguing is to create more animosity.
Indeed, they are actually likely to accuse those who know more of being the ones who are wrong.
Critical thinking and logic are one of these fields.