This post has not been vetted or endorsed by BuzzFeed's editorial staff. BuzzFeed Community is a place where anyone can create a post or quiz. Try making your own!

    7 Billion: How Did We Get So Big So Fast?

    7 Billion: How Did We Get So Big So Fast?

    peecee1978
    by peecee1978

    Community Contributor

    View this video on YouTube
    youtube.com
    Want to get your very own quizzes and posts featured on BuzzFeed’s homepage and app?

    Become a Community Contributor.
    promo

    Sign up to get started

    Learn more about Community