Extra-virgin olive oil ought to be flammable enough to keep an oil lamp burning. It will also burn without producing any noticeable smoke. So, if your olive oil will not keep a wick lit (or if it can, but produces a lot of smoke), you can trust that it is fake olive oil. However, other oils can keep a wick lit, too.
In 1882 Edison helped form the Edison Electric Illuminating Company of New York, which brought electric light to parts of Manhattan. But progress was slow. Most Americans still lit their homes with gas light and candles for another fifty years. Only in 1925 did half of all homes in the U.S. have electric power.
During the ancient times, the people of Mesopotamia lived under the rule of the Babylonian king, Hammurabi. Hammurabi created his code of laws, which consists of 282 laws, in the year 1750 BC. The Code of Hammurabi was inscribed on stone, which suggests that the King accepted the laws from the sun god, Shamash.