a little short there. try roughly 7 million.
In our form, I meant like, the first cultures we know about, I think I am quite right with 20,000 years then. I think the oldest human style thingys were about a million years old or so, yes, ok.
However, reports and mysterious about our governments trading with aliens etc are ... bullshit. Do you know why? Because first, you just have to look at the people telling those stories. They are weirdos all the way. Second, when has the government be really able to keep something secret? Never. Third, as I mentioned before, the people who believe in present contacts and sightings of aliens are weirdos, and a lot of their so called evidence is fake ... ok, ALL of their evidence. A lot of clouds look like UFOs, etc. Do you really think that we would discover a UFO, if the aliens are so keen to keep hidden from us? I should think not ...
Believe in extraterristical life? Yes. At our point of time? Possible. Sentient life? Maybe, perhaps in the far past, perhaps a hundred of sentient life forms in different galaxies, never to know each other. Super intelligent aliens watching us, making experiments? Yeah, most likely. Hollywood tells us ... lol
And man developed like any animal. We didn't just pop up. I think in America intelligent design is on the run, eh? Does explain a lot ... *sigh*