Between 500 BC and 449 BC, there was a war between Athens and Sparta. At this time, Athens was already in the position of the ally of Gilos and had entered a period of great power. During the war, Sparta was slightly inferior, at this time the Spartan commander Lesander asked the Persian Empire for help, and the Persian Empire agreed to Lesander's request and agreed to send troops to assist Sparta in conquering Athens, at this time Sparta was mainly defensive, waiting for reinforcements from the Persian Empire.
Day by day, Lesander waited anxiously, and had not seen reinforcements at the scheduled time, and the information of reinforcements had not been heard. Lesander could not wait, so he sent spies and an emissary to Persia to spy on intelligence, but the people sent were never returned.
One day, Lesander's men caught a suspicious man while on patrol. His men brought the man to Lesander.com.
Lesander saw that the man who had been arrested looked like a beggar, his clothes torn, his hair disheveled, he couldn't speak, he was dumb. Lesander thought that there was nothing wrong with this man, so he raised Yang and asked his subordinates to release the man.
"Slow down, stop!"
When his subordinates took this man away, the moment the man turned around, Lesander saw a sheepskin belt tied around the man's waist, and Lesander suddenly felt strange, "This is not right, how can there be such a good sheepskin belt on the beggar's body?" Lesander immediately told the man to stand.
The men took the man to Lesander again, and Lesander told his men to untie the sheepskin belt and first use the belt to whip the man a few times, and the man seemed to be very strong, did not show submission, did not ask for forgiveness, Lesander thought it was a manifestation of will, indicating that this man must have a head. Lesander then asked his men to shave the man's hair, and seeing that the chrome on his scalp was in Greek confirmed Lesander's idea. Lesander wanted to go over the sheepskin belt and wanted to whip him a few times to relieve his breath. When Lesander got the sheepskin belt, he saw that the sheepskin belt was densely packed with Greek letters. Lesander thinks there will be fame in it. Lesander hurriedly asked his subordinates to lock up the man first, and then asked a few people to study the Greek letters together to see what was going on and what was famous.
Several of Lesander's men, who claimed to be military masters, came, and these people could be said to be his think tanks, and Lesander consulted these people about everything. Lesander had been with these men for some time without result, from morning to afternoon, evening, and the next morning, and still no fruit.
When he was getting ready for lunch the next day, Lesander picked up the sheepskin belt again and inadvertently made a circle around his hand, and it was this inadvertent movement that Lesander elephant found something and screamed: "There is, there is." "He called a few people to his side, let everyone see, put the sheepskin belt on his arm and circled it a few times, is there a letter that makes up the word?" It shows that these letters are not disorganized, but have certain rules. Lesander immediately said don't eat it, go find some sticks of different sizes, try one by one, and always find the right stick. In this way, the subordinates found many hundreds of large and small pieces of wood, and Lesander repeatedly wound them one by one, and finally saw on one piece of wood that the letters on the sheepskin belt formed a complete word and connected it into a complete sentence.
The sentence consisting of letters on this sheepskin belt was to the effect that the Athenians knew that the Persians had killed Spartan envoys and spies and were ready to fight Sparta to the death. The Persians would suddenly attack Sparta in the midst of a decisive battle, killing Sparta to death.
When Sparta saw this information, his head exploded. Good Persian, you promised to send troops to help me attack Athens, but now it is the other way around. Too late, too soon, Lesander immediately adjusted his strategy and gave the Persians a surprise attack. The Persians did not expect that the intelligence would be leaked, the Sparta would attack themselves, and because they were not half prepared, the Persians were beaten by the Spartans and defeated. The battle boosted the morale of the Spartans, and Lesander took advantage of the victory and soon defeated Athens and won the war.
Password poker
When humans can write notes with a pen, they have the generation of passwords. Cryptography is not only used militarily, but also enters all aspects of human life. People's struggle around cryptography is an alternative contest of people's intelligence and a contest of the beauty of mathematical mystery. Whoever can crack the code can win wars, business, life, and so on.
Although Lesander accidentally cracked the "Book of Heaven" of the sheepskin belt, he became the first person to crack the code since the record.
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