Know : List of Oldest & Continuously Inhabited Cities

This is a list of present-day cities by the time period over which they have been continuously inhabited. The age claims listed are generally disputed and may indeed be obsolete. Differences in opinion can result from different definitions of "city" as well as "continuously inhabited" and historical evidence is often disputed. Several cities listed here... Continue Reading →

Know : Long list of Petroleum based Products

The environmental impact of petroleum has been often negative because it is toxic to almost all forms of life. The possibility of climate change exists. Petroleum, commonly referred to as oil, is closely linked to virtually all aspects of present society, especially for transportation and heating for both homes and for commercial activities.  One 42-gallon barrel of oil creates 19.4 gallons of... Continue Reading →

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