While the local use of oil goes back many centuries, the modern petroleum industry along with its outputs and modern applications are of a recent origin. Petroleum's status as a key component of politics, society, and technology has its roots in the coal and kerosene industry of the late 19th century. One of the earliest instances of this is the refining of paraffin from crude oil. Abraham Gesner, developed a process to refine a liquid fuel (which he would later call kerosene) from coal, bitumen and oil shale, it burned more cleanly and was cheaper than whale oil. James Young in 1847 noticed a natural petroleum seepage when he distilled a light thin oil suitable for use as lamp oil, at the same time obtaining a thicker oil suitable for lubricating machinery. The world's first refineries and modern oil wells were established in the mid-19th century. While petroleum industries developed in several countries during the nineteenth century, the two giants were the United States and the Russian Empire, specifically that part of it that today forms the territory of independent Azerbaijan. Together, these two countries produced 97% of the world's oil over the course of the nineteenth century. The use of the internal combustion engine for automobiles and trucks in the turn of the 20th century was a critical factor in the explosive growth of the industry in the United States, Europe, Middle East and later the rest of the world. When diesel fuel replaced steam engines in warships, control of oil supplies became a factor in military strategy—and played a key role in World War II. After the dominance of coal waned in the mid-1950s, oil received significant media coverage and its importance on modern economies increased greatly, being a major factor in several energy crises. The concern of oil being run out has brought new developments to light such as commercial-scale fracking and the increasing usage of cleaner energy. In the 20th century issues of air pollution led to government regulation. In the early 21st century environmental issues regarding global warming from oil and gas (in addition to coal) makes the industry politically controversial. Early history According to Herodotus, more than four thousand years ago natural asphalt was employed in the construction of the walls and towers of Babylon. Great quantities of it were found on the banks of the river Issus, one of the tributaries of the