You have made the last adjustments to your work, the time machine. To society you were crazy, but you knew it would work. Upon entering, you turn it on and select '1920', however on the way in you see the number descending wildly. The machine breaks the webs of the universe and capsizes in a completely strange place. When looking at the date, you see, 'Neolithic Era (5,000 - 2,000 BCE)'