Me at the Zoo, left, was the first video uploaded to YouTube while MrBeast became the first account to reach 300 million subscribers. Photos: Jawed Karim; MrBeast
Me at the Zoo, left, was the first video uploaded to YouTube while MrBeast became the first account to reach 300 million subscribers. Photos: Jawed Karim; MrBeast

YouTube turns 20: Video platform's evolution from a 19-second zoo clip to MrBeast's 300 million subscribers