https://www.reuters.com/article/us-usa-tiktok-timeline/timeline-tiktoks-journey-from-global-sensation-to-trump-target-idUSKCN2510IU

Microsoft Corp's potential acquisition of TikTok's U.S. operations is the latest twist in a rollercoaster two years for the short video app, which has come under growing scrutiny from overseas governments as its global popularity soars.