Khanoisseur 🐶🤦🏻‍♂️🌎 @Khanoisseur Nonpartisan fact-checks + analysis of news (+ 🐶 pics). *Turn notifications on* (Podcast coming). Stuff for @Google @Twitter @Uber @Facebook @Tesla May. 25, 2019 2 min read

Does he know that algebra came from Arabs? That ancient Persians invented evaporative cooling (“refrigerators” = yakhchal), batteries, sulfuric acid, postal service system, concept of human rights, animation, water supply system and regulated taxation?

An ancient “refrigerator” or Yakhchāl in Yazd, Iran, made from water resistant mortar called sarooj: Persian engineers invented this type of evaporative cooler around 400 BC to channel in water via aqueducts to create ice in winter and then store it in the summer in the desert.

Ancient Persians also came up with a functional postal system. King Cyrus the Great (550 BC) mandated that every province in his kingdom would organize reception and delivery of post to each of its citizens. He negotiated with neighbouring countries to do the same.

Persian polymath, physician, alchemist, philosopher, and astronomer Muhammad ibn Zakariya al-Razi (854–925) is credited with being the first to produce ethanol and sulfuric acid. He was among the first to use humoral theory to distinguish one contagious disease from another.

Animation originated in ancient Persia. An earthen goblet discovered in southeastern Iran, depicts a series of drawings of a goat that jumps toward a tree and eats its leaves. Similar forms of pottery with sequential pictures can also be found throughout medieval Islamic Persia.

Arab mathematician Ibn al-Haytham was the first to explain that vision occurs when light reflects from an object and then passes to one's eyes; first to note that vision occurs in the brain, rather than in the eyes. A polymath, he also wrote on philosophy, theology and medicine.

Muslim polymath al-Jazari developed the first clock in which an automaton reacted after certain intervals of time (humanoid robot striking the cymbal and mechanical robotic bird chirping) and the first to accurately record passage of temporal hours to match uneven length of days.

Then there was Al-Kindi (801-873 AD), a father of cryptography, whose book entitled Manuscript on Deciphering Cryptographic Messages gave rise to the birth of cryptanalysis and earliest known use of statistical inference and introduced several new methods of breaking ciphers.

The Achaemenid Persian Empire of ancient Iran established unprecedented principles of human rights in the 6th century BC under Cyrus the Great who issued the Cyrus cylinder, discovered in 1879 and seen by some today as the first human rights document.

Historians generally agree that in the early Islamic caliphate, Muhammad preached against what he saw as the social evils of his day, and led Islamic social reforms in areas such as social security, family structure, slavery, and the rights of women and ethnic minorities.

Under Islamic law, marriage was no longer viewed as a "status" but rather as a "contract", in which the woman's consent was imperative. As John Esposito notes, "Women were given inheritance rights in a patriarchal society that had previously restricted inheritance to males."

Bernard Lewis states that Islam brought two major changes to ancient slavery which were to have far-reaching consequences. "One of these was the presumption of freedom; the other, the ban on the enslavement of free persons…"

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