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5 days ago · 1st century AD: The first use of respiratory protective equipment is documented by Pliny the Elder (c. 23 AD –79) using animal bladder skins to protect workers in Roman mines from red lead oxide dust. 1st century AD: Vending machines invented by Hero of Alexandria. By the 1st century AD: The double-entry bookkeeping system in the Roman Empire.
- Fritz Strassmann
Friedrich Wilhelm Strassmann (German: [fʁɪt͡s ˈʃtʁasˌman] ⓘ;...
- Timeline of Electrical and Electronic Engineering
Year Event 600 BC: Ancient Greek philosopher Thales of...
- Timeline of Computing
Timeline of computing presents events in the history of...
- Fritz Strassmann
2 days ago · Atopic dermatitis ( AD ), also known as atopic eczema, is a long-term type of inflammation of the skin ( dermatitis ). [2] It results in itchy, red, swollen, and cracked skin. [2] Clear fluid may come from the affected areas, which can thicken over time. [2]
- Unknown
- Itchy, red, swollen, cracked skin
- Childhood
4 days ago · Jesus Washing Peter's Feet, painting by Ford Madox Brown (1852–1856), Tate Britain, London. Christianity in the 1st century covers the formative history of Christianity from the start of the ministry of Jesus ( c. 27 –29 AD) to the death of the last of the Twelve Apostles ( c. 100) and is thus also known as the Apostolic Age. [citation ...
2 days ago · Japan portal. v. t. e. The first human inhabitants of the Japanese archipelago have been traced to the Paleolithic, around 38–39,000 years ago. [1] The Jōmon period, named after its cord-marked pottery, was followed by the Yayoi period in the first millennium BC when new inventions were introduced from Asia.
3 days ago · Al-Andalus [a] ( Arabic: الأَنْدَلُس) was the Muslim -ruled area of the Iberian Peninsula. The term is used by modern historians for the former Islamic states in modern-day Gibraltar, Portugal, Spain, and Southern France. The name describes the different Muslim [1] [2] states that controlled these territories at various times between ...
3 days ago · The iPad is a brand of iOS and iPadOS -based tablet computers that are developed by Apple Inc., first introduced on January 27, 2010. The iPad range consists of the original iPad lineup and the flagship products iPad Mini, iPad Air, and iPad Pro . The iPhone's iOS operating system (OS) was initially used for the iPad but in September 2019, its ...
1 day ago · Its capital and largest city is Andorra la Vella . Andorra is the sixth-smallest state in Europe, with an area of 468 square kilometres (181 sq mi) and a population of approximately 79,034. [15] [16] The Andorran people are a Romance ethnic group closely related to Catalans. [17]
