Answer:
The discovery of oil
Explanation:
There are numerous theories about the emergence of oil, but the most accepted is that it came from the organic remains of animals and plants deposited at the bottom of lakes and seas undergoing chemical transformations over thousands of years.
The first oil well was discovered in the United States - Pennsylvania - in the year 1859. It was found in a shallow (21m) region. However, it was in 1900 that oil peaked causing the great consumer boom the world has ever seen.
In 1900 the oil became very valuable and came to be called "Black Gold". In addition to being used as fuel, various products are derived from petroleum such as paraffin, natural gas, LPG, asphalt products, petrochemical naphtha, kerosene, solvents, fuel oils, lubricating oils, diesel oil and aviation fuel.
All of this influenced the production of preducts and consumption by them became increasingly large.
, also known as the Second World War was a global conflict that took place between
and
. The vast majority of countries in the world, including all of the great powers, formed two competing military alliances: the Allies and the Axis forces.