Earth is 4.5 billion years old - which is approximately the same amount of time it took us to create this video. We've scaled the complete timeline of our Earth's life into our first animated movie! Every second shows about a million years of the planet's evolution. Hop on a musical train ride and experience how long a billion years really is. It's the perfect background for your next party, a great way to take a break from studying, or a fascinating companion while you're on the go ... and our celebration of 10 years of kurzgesagt.