This was known as the "iron curtain." It was a term used to describe the boundary in Europe, which formed at the end of WWII and lasted until the ending of the Cold War.
Answer:
British mathematician William Bourne made some of the earliest known plans for a submarine around 1578, but the world’s first working prototype was built in the 17th century by Cornelius Drebbel, a Dutch polymath and inventor in the employ of the British King James I. Drebbel’s sub was probably a modified rowboat coated in greased leather and manned by a team of oarsmen. Sometime around 1620, he used it to dive 15 feet beneath the River Thames during a demonstration witnessed by King James and thousands of astonished Londoners. Unfortunately, none of Drebbel’s plans or engineering drawings has survived to today, so historians can only guess about how his “diving boat” actually operated. Some accounts say it submerged via a collection of bladders or wooden ballast tanks, while others suggest that a sloping bow and a system of weights were used to propel the boat underwater when it was rowed at full speed.
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Answer:
Syr Darya
Explanation:
With a length of 1,374 miles (2,212 km)—1,876 miles (3,019 km) including the Naryn—the Syr Darya is the longest river in Central Asia, but it carries less water than the Amu Darya.
Answer: King Philip of France died without an heir and his closest relative was King Edward III of England, so King Edward III was to become the new King of France but the French didn't want to be under English rule so they said that Edwards III's claims to the French throne were invalid, the result was a series of conflicts lasting 116 years between England and France and the conflict ending at the Battle of Castillon, 1453 after which England lost all of it's holdings in France, except Calais.
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