The answer lies in the mid 20th century up until the present day. With the advent of computer technology people can scan bone, rock and animal dna structures from thousands of years ago. The introduction of a broad educational service in most developed countries and the rapid growth of the human population in the time specified has helped a great number of smart scientists and free thinkers put forward arguments and collect evidence to support their views. This massive amount of data – both theory based and proven beyond doubt can be stored, analysed and evaluated by computers way beyond anything humans could readily achieve.

Check out a timeline in an encyclopaedia for important dates and discoveries to back up your argument…all the best.

The center of the earth is made of the heaviest elements, iron and nickel. this is helpful in studying earthquakes and how they travel through the earth

where we are in the solar system and galaxy