How did April Fool's Day and Valentine's Day come about?

It is said that April Fool's Day originated from a famous Greek myth and legend.

Atlas of April Fool's Day posters (13 pictures) Demeter, the goddess of agriculture, is a god known to all women and children in Greece. She has boundless magic power, which can make the land fertile and the grain abundant, and can also make the countryside barren and everything wither. Among the Greek gods, she is also one of the most revered goddesses. Zeus, the king of gods, is her brother and her husband. This identity alone is enough to make the gods bow at her feet. However, the life of this powerful goddess is not perfect. Zeus, by virtue of his position as the king of gods, made many affairs and brought endless troubles to Demeter. The only thing that can make her enjoy life is her daughter Persephone, who was born with Zeus. She is a smart, beautiful, naive and lively girl, and no one will be sad or sad with her. On this day, Hades drove around Sicily, and was just seen by Aphrodite, the god of love and beauty who walked in the clouds. At the same time, she saw Persephone, who was walking in the field, and her partner Athena, the goddess of hunting. At the sight of these men, Aphrodite was furious. These men and women never talk about love or marriage. Do they still have the status of loving God in their eyes? Athena and Artemis are famous chastity goddesses, and they are both famous for their martial arts skills and miraculous powers. It is better not to provoke them. But for this little girl Persephone, you don't have to be polite. So, Aphrodite, with a sacred aura shaking her head, called her son? Little love god urrows said to him, "Look, how do these people treat love?" If people and God learn from them, how can we rule the world? Come on, shoot an arrow at Hades and make him fall madly in love with Persephone! " Urrows is a good marksman. He bent his bow and shot hard, an invisible arrow of lust, which was plunging into Hades' heart. Then, he followed Aphrodite and roared off, waiting for the show. Sure enough, after Hades was shot, he had an unforgettable love for Persephone. But he knew very well that this well-known beauty would never give up the sunny earth and sky and go with him to the dark underworld. So, he found his brother? Zeus, the king of the gods, asked him to marry his daughter to hades. "Well ... I can't be the master," said the master of the gods thoughtfully. "As you know, Demeter is very difficult. However, if you have the ability to take Persephone away, I have no objection. " With the acquiescence and hint of the God King, Hades was filled with joy, and he immediately returned to the ghost land to get ready to rob his relatives. One day, while Persephone was bending down to pick a wild flower in the field, the earth suddenly opened a wide crack. Then, a glittering golden car rushed to the ground, driven by the majestic Pluto. He threw himself, picked up Persephone, put it on the seat beside him, shouted, and the carriage sank underground at an unpredictable speed. The cracked earth suddenly closed, and it was still sunny and green, and nothing seemed to happen except Persephone's cry for help echoed in the sky. Demeter, far away, heard her daughter's heartbreaking cry for help. But when she flew back at the fastest speed, her daughter was gone. She only knew that her daughter had been robbed by a "robber", but she couldn't find any clues about who the robber was. The gods who knew the whereabouts of Persephone were all silent. They know the background of this matter, Zeus and Hades are not easy to mess with, and no one wants to get burned. A few gods were asked urgently, and they were also talking nonsense from east to west, north and south. According to their instructions, the goddess ran headless like a fly. Needless to say, all these became a futile trek. However, the love for her daughter made Demeter look for it endlessly. No matter what god said, she was convinced. Although later facts proved that those were outright lies. In desperation, she lit two pine torches at the unfathomable Etna crater, illuminating the whole world. Since then, neither the goddess of dawn nor the goddess of night has seen her sit down and have a rest. In this way, Demeter traveled all over the world. However, my daughter has become like water vapor and floating clouds, and there is still no trace. The gods gradually turned from sympathy to disgust for her. Because this "crazy woman" is looking for her daughter, there is no moment of peace in the world. The more they take her up, the more they point to the southeast and the northwest, just to send her away and live a peaceful life in a few days. Finally, Demeter had to drag his tired body back to Sicily, where Persephone disappeared. After running around for many days, no one knows who the culprit is, and the goddess' anger can be imagined. So, she took all her grievances out on Sicilian farmers. She killed all the cattle on the island, ordered the land to be as hard as steel, sealed the seeds in the land, and made all the plants yellow and withered. Make this vast island naked and hungry everywhere. Zeus, seeing that she had made a terrible scene, kindly advised her to look elsewhere again and not to take it out on innocent farmers. Demeter didn't know there was fraud, and once again embarked on the journey of shopping. This is a terrible thing. I don't know how many places, because of the anger of the goddess, have become barren, and there is a desperate atmosphere of hunger and famine everywhere. When she realized that she was in her husband's freshman year again, she calmed down and thought about what to do in the end. Inadvertently, she looked up and saw Helius, the sun god, driving a golden cart and patrolling the vast space. It suddenly occurred to me that only he is high above the ground, shines on everything, and is observant. Nothing in the world can escape his eyes. This just holding a torch, fly to the front of Helius, ask him to give directions. The great sun god pities the goddess' experience without fearing the power of hades. Moreover, he didn't want Demeter to make a scene like this again, so that the gods would be embarrassed and the people would suffer. He described the situation of Hades' kidnapping. Demeter suddenly realized, but it was too late. At this moment, Persephone, lured by Hades, has become a noble afterlife and can no longer reunite with her mother on the ground. Besides, no matter how powerful Demeter is, he can't take his daughter away from Hades. Demeter knew that he had been deceived and fooled by the gods, and his anger and irritation deepened. She simply gave an order to let all the plants in the world wither together, all the crops died, and there was no trace of green on the earth. I hid in a remote place and never showed up again. Gal, heaven and earth all messed up. Ordinary people have no food to eat, and thousands of people starve to death every day. Crowds of dead people crowded into hades, making a noise, which made Hades upset and flustered. The gods are also yellow and emaciated with hunger because they can't get human sacrifices and gifts. Zeus can't help it, so he has to live in hades for 1/3 of the year in Jeanpert, and return to the world for 2/3 of the year to serve her mother. After that, whenever Persephone stayed in the ghost land, Demeter was sad and the land was in depression. Once the daughter is reunited with her, the goddess will smile, and the world will reproduce the vitality of vegetation recovery and blooming. Obviously, in this story, Demeter is a complete fool. She didn't know the trick of loving God, and she didn't know the accomplice of her husband and Hades. After the incident, she was swayed by the gods, cheated and teased repeatedly. Since then, people have set up April Fool's Day to warn those who think they are smart with white lies, not to do stupid things that make people laugh and be generous because of credulity.