Chemistry and Technology of Lubricants - R. M. Mortier, S. T. Orszulik - Google Books

https://books.google.de/books?id=uKKNBwAAQBAJ&pg=PA62#v=onepage

The use oflubricants began in ancient times and has developed into a major international business through the need to lubricate machines of increasing complexity. The impetus for lubricant development has arisen from need, so lubricatingpractice has…