The oldest fossils on Earth show that 3.5 billion years ago there was life on our planet — Quartz

As humans, it’s difficult to take the long view of history because we’re the new kids on the block, having only been around 3 million years or so. Although you may feel old by the time you’re an adult, the reality is that people are a recent development. The first life forms existed long before our arrival, now confirmed as some 3.5 billion years ago.....
https://qz.com/1159798/the-oldest-fossils-on-earth-show-that-3-5-billion-years-ago-there-was-life-on-our-planet/