(3rd millennium – 4th millennium – 5th millennium – other millennia)
The fourth millennium is a period of time which will begin on January 1, 3001 and will end on December 31, 4000.
The year 3797 (or 3786 according to some) is the year Nostradamus claims will be the end of the world.
The Earth will experience 2366 solar eclipses.
The animated series Futurama is set in the 4th millennium.