Social Media Timeline By tiagee123 2016 Vine Shut Down 2016 Instagram Reaches 500 Million Active Users Feb 24, 2016 Facebook Launches Reactions 2017 TikTok Launch Jun 27, 2017 Facebook Reaches 2 Billion Users 2018 Parler Launch 2018 Musical.ly Shuts Down 2020 Parler Shut Down 2020 Instagram Introduces Reels