In the 1800s, Joseph Lister, a famous British surgeon observed that many people died soon after an operation while the wounds were healing. When he used antiseptics during the operation, the number of deaths decreased. His findings led to widespread use of antiseptics as

His findings led to the widespread use of antiseptics such as phenol.

Explanation:

Joseph Lister was a British surgeon. He is not known for being a great doctor, or for having an impeccable surgical technique, but for discovering that the use of antiseptics before and after surgery could save many people's lives. He was a great bacteriologist and knew that bacterial infections were serious, but that they could be prevented with the use of antiseptics. After their discoveries, antiseptics became very popular, among them phenol, which was one of the first to be commercialized and used.

first paragraph (and busy all the night ,with a silence deep and white )

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.