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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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The horizontal fraction bar was introduced by the Arabs.

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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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