Has Humanity Evolved Over Time?

If you think about this question technically, then of course we have evolved. We've developed new tools, new medication, and different types of government. But at the root of it all, socially we act the same towards one another. Back then, groups of people were formed and together they lived and fought with other groups of people. Today is no different, we formed different countries and still wage war on each other, just on a larger scale.