Today in history

Today I will share with you guys 5 things that happened on this day, 15th June, in the history of the world

1. 1667: The First Animal-to-Human Transfusion – French physician Jean-Baptiste Denys performed the first documented human blood transfusion today. He successfully pumped a small amount of blood from a sheep into a feverish 15-year-old boy. Remarkably, the boy survived the procedure, though later attempts by Denys with other patients ended in fatal immune reactions.

   

2. 1963: The First Woman in Space – Soviet cosmonaut Valentina Tereshkova blasted off from the Baikonur Cosmodrome aboard the Vostok 6 capsule today. Over her three-day mission, she orbited the Earth 48 times, entirely out-logging the combined flight time of every single American astronaut who had flown before her up to that point.

   

3. 1215: The Forced Royal Seal – Under direct threat of a full-scale civil war from his own rebellious barons, King John of England reluctantly attached his Great Seal to the Magna Carta today. The historic document severely stripped the king of his absolute power, establishing the revolutionary legal principle that absolutely nobody—not even royalty—is above the law.

   

4. 1844: The Accidentally Patented Rubber – American inventor Charles Goodyear was finally granted a patent for the "vulcanization of rubber" today. Five years prior, he had accidentally dropped a mixture of raw rubber, sulfur, and lead onto a hot stove, discovering that the heat cured the material and prevented it from melting in the summer or freezing brittle in the winter.

   

5. 1904: The General Slocum Steamboat Disaster – A massive paddle steamer caught fire and sank in New York's East River today while carrying over 1,300 passengers on a church outing. The tragedy resulted in over 1,000 deaths, making it the worst disaster in New York history in terms of loss of life until September 11, and exposing massive safety fraud regarding rotted life vests and unusable lifeboats.

   

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