Coal and wood are two sources which had been used extensively since the 18th century. when steel was commercialized heavily using the Bessemer Proces later at the 19th century. At this time, petroleum became the major energy source of energy and was even used extensilvely in other processes as converting petroleum to fuels.
I think its A mirikitanis grandmother
Aaron Burr on July 11th, 1804
It attracted brilliant scholars from around the world
