The Death of Servet. October 27, 1553.

Michael Servetus, also known as Miguel Servet, was a Spanish theologian, physician, cartographer, and Renaissance humanist. He was the first European to correctly describe the function of pulmonary circulation, as discussed in his book Christianismi Restitutio (1553). He was a polymath versed in many sciences: mathematics, astronomy and meteorology, geography, human anatomy, medicine and pharmacology, as well as jurisprudence, translation, poetry and the scholarly study of the Bible in its original languages. When Juan de Quintana, an imperial theologian became Confessor to the Habsburg emperor Charles V, Servetus joined him in the imperial retinue as his secretary. Servetus travelled through Italy and Germany, and attended Charles‘ coronation as Holy Roman Emperor in Bologna. He was...

Life on Mars. August 6, 1996.

In August 6, 1996 a team of researchers announced that the meteorite ALH84001, discovered in the Allan Hills of Antarctica, may contain evidence of life on Mars, but further tests were inconclusive. To date, no proof has been found of past or present life on Mars. Cumulative evidence shows that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms. The existence of habitable conditions does not necessarily indicate the presence of life. Scientific searches for evidence of life began in the 19th century, and continue today via telescopic investigations and deployed probes. While early work focused on phenomenology and bordered on fantasy, the modern scientific inquiry has emphasized the search for water, chem...

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