What oil was used before crude oil, to fuel lamps and lube machines

Petroleum-which has a color range of yellow to black- is a liquid found in geological formations beneath the Earth 's surface. It is changed into various types of fuels. I believe it was Scottish chemist James Young in 1847 who discovered it.

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when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.