In ancient times, China used drums to transmit information, as early as the end of primitive society in the 1950s. By the Western Zhou Dynasty, China had a relatively complete postal system. During the Spring and Autumn Period and the Warring States Period, with the progress of politics, economy and culture, postal communication gradually became complete. During the Three Kingdoms period, Cao Wei's greatest achievement in postal history was the formulation of postal orders.
One of the signs of the development of postal service in Sui and Tang Dynasties was the increase in the number of post stations. During the Yuan Dynasty in China, the postal service developed greatly. The biggest feature of the post system reform in Qing Dynasty is the combination of "post" and "post". After the middle of Qing Dynasty, with the establishment of modern postal service, the ancient postal system was gradually eliminated.
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Lighthouses originated from the bonfires in ancient Egypt.
The earliest lighthouse in the world was built in the 7th century BC, located at Baba Point in the Daniil Strait, standing like a huge bell tower. At that time, people burned firewood in the lighthouse and used its fire to guide the course.
In 280 BC, the ancient Egyptians, under the orders of King Ptolemy II Filadelf, built a lighthouse on fallows Island opposite Alexandria, Egypt, which was 85 meters high and burned wood day and night, with flames and smoke columns as navigation signs.
Faros Lighthouse, known as one of the seven wonders of the ancient world, was destroyed by the earthquake in 1302. At the beginning of the 9th century, the French built a lighthouse in Douang Reef, the surgical site at the mouth of the gironde River, which has been rebuilt twice. The existing lighthouse was built in 16 1 1.
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