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1850- Introduction of Coal
In 1850, coal was introduced into the mainstream. It became more popular than wood and was the main source of energy. -
1885- Introduction of Natural Gas
In 1885, Natural Gas was introduced, but still not nearly as popular as coal. -
1905- Introduction of Petroleum
In 1905, Petroleum was introduced and began to become more popular than wood and natural gas, but still not as popular as coal. -
1935- Coal Becomes Less Popular
In 1935, coal became less popular for a short period of time. -
1945- Coal & Petroleum become more popular
In 1945, coal and petroleum reigned the most popular source of energy. -
1955- Rise of Petroleum
In 1955 petroleum outweighed coal in popularity. Natural gas began to become more popular as well. -
1960- Nuclear Energy Introduced
In 1960 nuclear energy was introduced and not overly popular yet. -
1978- Petroleum is the most popular
In 1978 Petroleum became extremly extremly popular. It was the most used energy source. -
2009- Wood Dies Out
In 2006 wood was significantly less popular and barely used. -
1775- Wood Power
Wood power was the most popular in the early 1770s. It was the main US source of energy
