A 2,500 year old ancient Greek 'cooker': three (or four) stoves, oven and a grill. Found on the Greek island of Delos. (Photo source: luxeadventuretraveler)
I think the scariest alien scenario ever would be if they came to earth, didn’t talk to humans, communicated with something in the ocean for a few days and then just left
The existence of mankind can be traced way back to about 200,000 years and in contrast to it, humans have started recording history just 6000 years ago. It means that we may never be able to know what happened in those 194,000 years that have never been recorded. - Dr. M.F. Khan