disinfectant

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Aspirin pills.

7 Drugs that Changed the World

Photo of the antacid Tums

How Do Antacids Work?

Abstract vector hi speed internet technology background

History of Technology Timeline

false viper. Viper. Snake. Giant False Viper (Xenodon severus) in the Peruvian Amazon (aka Giant False Fer-de-Lance or Amazon False Fer-de-lance)

7 Bizarre Spa Treatments

Binary Computer Code, Binary Code, Internet, Technology, Password, Data

How Does Wi-Fi Work?

Discover

Hemp (Cannabis sativa).

9 Mind-Altering Plants

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

What is Holy Week?

Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

7 of the World’s Deadliest Shipwrecks

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,

Which Religion Is the Oldest?

Titanic infographic. The 30th anniversary of its discovery is September 1, 2015. SPOTLIGHT VERSION.

Timeline of the Titanic’s Final Hours

disinfectant: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Topics

nitromersol antimicrobial agent vaccine antiseptic

Key People

Aulus Cornelius Celsus

Roman medical writer