Current science believes that the Universe began about 13.7 billion years ago. The earth came to existence about 4.5 billion years ago, with the first basic forms of life starting a mere 3.8 billion years ago. Our friends the humble fish appeared about 500 million years ago and mammals only 65 million years ago. Here’s a visual timeline of evolution I found.
Ooh honored. Might take me a bit of time to come up with 26 things – as an engineer English is my second language you know.
Marti