Events in history that show how independence has evolved throughout society?

I know, weirdly worded question.
And I’m saying like socially, not politically. Today, I’d argue that we have more dependence than ever despite all of our independent freedoms given to us. Here’s a quote from TheAmazingAthiest from YouTube:
“You are completely f**king dependent on society. 10,000 years of social evolution. Yes, I know the human species is older than 10,000 years, but we’ve only been socially evolving for about 10,000 years”(TheAmazingAthiest).
He’s basically saying that we have become completely dependent because we rely on others for almost everything: clothing, food, shelter. We rely on companies and workers to make that stuff for us and we just pay them to do it.
I need 3 events to research for an essay from any point in history that shows the world’s dependence as a whole evolving. My teacher said we can go as far back as ancient Rome, but since my essay revolves around social Darwinism/social evolution, I’d like the events to be within 500 years of Charles Darwin’s life (1850).