A main turning point that effected America and the world still to date is the invention of the internal combustion engine. This invention led to most modern forms of transportation. Steam engines, the industrial revolution and many skilled inventors helped make this invention as it is today and has shaped its future into many everyday devices.
Before the Internal combustion engine, it took many people and ideas to lead up to it. First was the Steam engine, invented to power early vehicles including the first true automobile by Nicolas Joseph Cugnot of France in 1769. In 1807 the first internal combustion engine was invented and powered by oxygen and hydrogen but turned out to be very unsuccessful. Finally in 1873 after many enhancements by people in the past years, an American named George Brayton developed a kerosene powered engine. Soon, in the coming years the idea would slowly be improved by many people suck as Daimler and Otto.
.
The truth is, as you can probably already tell, the internal combustion engine wasn't developed by a single person in a single day. It took many different people and developments to reach this invention. First, again was the steam engine, a device that converted the energy in steam to mechanical energy. Many forms of transportation were once a direct result from the steam engine including locomotives and steamships. Also, the Industrial Revolution occurred primarily because of the steam engine. The Industrial revolution was a period in the early to middle 19th century where many industrial innovations and advancements occurred. Third, were the many tools and technologies at the time like steel, petroleum and coal. Steel meant cheap but effective metal, and coal and oil would eventually lead to electricity and many more innovations. .
Not long after the many improvements of the internal combustion engine, it led to the invention of the modern day automobile by Karl Bentz and Gottlieb Daimler.