The history of the construction of the Great Wall can be traced back to the Western Zhou Dynasty, and the famous allusion "bonfire drama princes" occurred in Haojing, the capital (now Xi 'an, Shaanxi) originated from this. During the Spring and Autumn Period and the Warring States Period, countries competed for hegemony and defended each other, and the construction of the Great Wall entered its first climax.
But at this time, the construction length is relatively short. After Qin destroyed the six countries and unified the world, Qin Shihuang connected and repaired the Great Wall of the Warring States Period, which was called the Great Wall of Wan Li. The Ming Dynasty was the last dynasty to overhaul the Great Wall, and most of the Great Wall seen by people today was built at this time.
2. The world's oldest trade route between East and West: Silk Road.
The overland Silk Road originated in the Western Han Dynasty (202-8 years ago), starting from the capital Chang 'an (now Xi 'an), passing through Gansu and Xinjiang, reaching Central Asia and West Asia and connecting Mediterranean countries. Its original function was to transport silk produced in ancient China.
1877, German geologist Richthofen named the "Silk Road" from BC 1 14 to AD 127 as "the traffic road between China and Central Asia, and between China and India", which was quickly accepted by the academic circles and the public.
3. The world's tallest Tropic of Cancer sign tower: Guangzhou Conghua Tropic of Cancer sign tower.
Located on the hillside of Sanjiazi, Youmapu Village, Taiping Town, Conghua District, Guangzhou (23 26' 28 "44 N13 28' 56.16 E), it is the tallest and largest landmark tower on the Tropic of Cancer in the world.
4. The northernmost area of rice cultivation in the world: Huma County, Heilongjiang Province?
Huma County belongs to Daxinganling area of Heilongjiang Province. It is located between 50 49 ′ 20 ″ north latitude and 52 53 ′ 59 ″ east longitude, between125 03 ′ 20 ″ east longitude and127 01′ 30 ″ east, at the eastern foot of Daxing 'anling and the southwest bank of the upper reaches of Heilongjiang. It borders Xinlin and Tahe County in the west and north, Aihui District and Nenjiang County in Heihe City in the south, and Manof, Svobodny and Magdagazi in the east across the river.
5. The most famous tidal bore in the world: Qiantang River Tide.
Qiantang River is located in Zhejiang Province, China, and finally flows into the East China Sea. Its mouth tide is qiantang bore, which is famous all over the world. Many tourists come to see this spectacle every year. Before the tide came, a small white spot appeared in the distance, which turned into a ray of silver line in the blink of an eye, and the white line rolled in with the low tide sound.
Almost before people can react, the surging tide has roared, with a peak of 3-5 meters. The back wave catches up with the front wave, layer by layer, like a long leucorrhea, overwhelming. As the poem says: "Qiantang seems to be wave after wave, and it is outrageous to suddenly come;" It seems that in ordinary rivers, the energy is amazing. "From far and near, the tide flew by, pushed by the tide, and sounded like thunder.
Spray beads and splash jade, Malik gallops. Tide watching began in Han and Wei Dynasties and flourished in Tang and Song Dynasties. After more than two thousand years, it has become a local custom.