2. The Song Dynasty (960- 1279) was a dynasty in the history of China that inherited five dynasties and ten countries and started the Yuan Dynasty. Divided into two historical stages, the Northern Song Dynasty and the Southern Song Dynasty, there were 18 emperors who enjoyed the country for 3 19 years. Song Dynasty was an era of high prosperity in China's ancient commodity economy, culture, education and scientific innovation. In the third year of Xianping in the Northern Song Dynasty (1000), the total GDP of China was $26.55 billion, accounting for 22.7% of the world economy, and the per capita GDP was $450, reaching a peak of $600, both exceeding the average level of $400 in Western Europe at that time, while 1820 passed.
The GDP of Song Dynasty accounts for 80% of the world. How to calculate 80% of GDP in Song Dynasty is based on the tax revenue of major countries at that time (coins converted into gold) and the proportion of national economic income. However, the GDP of the Song Dynasty was obviously less than 80% of the world's, because the algorithm was wrong, and the fiscal revenue of the Northern Song Dynasty was wrongly converted into1.600 million taels of silver. That is 800,000 kilograms of gold. However, due to the issuance of jiaozi in the Song Dynasty and the collection of annual coins, silver is expensive and money is cheap. About four coins are equivalent to one or two ounces of silver (40 grams in Song Dynasty), and 20 ounces of silver is equivalent to one or two ounces of gold. Through this conversion, it is generally known that the financial revenue of the Song Dynasty is actually only 2 million ounces of gold, that is, 80,000 kilograms of gold, and the coin of 16000 seems to be moist. It seems that the highest revenue in a year is more than 70 million, but it has not exceeded 100 million. Therefore, the current income of gold converted into Song Dynasty is about 20,000 to 35,000 kilograms, that is, 4 million to 7 million yuan of silver made in Ming and Qing Dynasties. Therefore, the Song Dynasty gave Liao 202,000 taels of silver silk every year, which was equivalent to 654.38+202,000 taels of silver, which was very stressful. As for the share of the Song Dynasty in China's GDP, due to its long history, it can only be estimated to be between 22% and 28% of the world's, and this is not the share of a country in the Song Dynasty, but the sum of Liao, Jin, Xixia, Tubo, Dali, Song and Mongolia. About 1 1% to 15% in the Northern Song Dynasty and 10% in the Southern Song Dynasty. It was also one of the richest countries at that time. The economic aggregate of the Southern Song Dynasty was second only to Jin (about 13%), and the economic aggregate of the Northern Song Dynasty was always ahead.
What is the video data source of the animal world? The videos of Animal World are all imported from abroad, but China can't make them.
Is NOKIA5300 discontinued? Ensure that accurate information and data sources are not stopped. This machine sells well.
Is it true that the GDP of Song Dynasty once accounted for more than 60% of the world? A kind of self-hypnosis. I have only seen the data. In the year of 1000, the per capita GDP of the Song Dynasty was the highest in the world at that time, but it was only 1. 1 times that of western Europe and about 1.5 times that of the world average.
According to the population of Song Dynasty, the GDP of Song Dynasty accounts for 30-40% of the world at most.
What do you mean by the source of the answer? I don't understand.
What does the peak bird call mean? Source: Information: Hummingbird is the smallest bird in the world, about the size of a bee, with a body length of only 5 cm and a weight of only about 2 grams, mainly distributed in forest areas of South America and Central America.
The source of sparrow information! Search terms
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Also known as English sparrow. One of the most familiar birds, whose scientific name is Passer domesticus, is probably the largest bird in the world. Sometimes classified as passerine (passerine) or passerine (passerine). Whether in urban or rural areas, Europeans have brought it from its place of origin (most parts of Eurasia and North Africa) to all parts of the world.
Chinese name: domestic sparrow
Latin scientific name: domestic passengers
Nickname: English sparrow
Name: house finch
Field: animal kingdom
Phylum: Chordata phylum
Subphylum: Vertebrate subphylum
Category: birds
Subclass: subclass of birds today
Order: passeriformes
Suborder: Spartina
Family: ornithidae
Genus: sparrow
Species: domestic sparrows
Distribution: Palaearctic and Eastern Hemisphere
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brief introduction
English name: House Sparrow
Introduction: 1852 was introduced to Brooklyn, North America, and the suite was extended to the whole American continent within one century. Body length 14 cm (5.5 inches), tan, male with black bib. Warm areas breed almost all year round. The nests are under the eaves, covered with messy (usually dirty) straw and feathers, and each nest has 4-9 eggs, which are unisexual.
cry
A monotonous chirp. When it is excited, it will bark, and when it is frightened, it will make a shrill cry. Chirp is a series of monotonous chirps.
Physical habit
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Physical characteristics: medium-sized sparrow (15cm). The difference between a male bird and a [tree] sparrow is that the crest and tail are covered with gray feathers, there are no black patches on the ears, and the throat and upper chest are more black. The female bird is pale and her eyebrows are light. Compared with female tits, the color of wing spots is not as obvious as that of black-crowned tits, with no fork at the tail and lighter chest color. There are yellow longitudinal stripes on both sides of the upper back and nearly black longitudinal stripes on the chest. The cheek sum of subspecies partini and bactrianus is whiter and smaller than that of the nominal subspecies. The subspecies partini has more black breasts.
Iris brown; Black mouth (reproductive male) or grass yellow, black mouth; Feet-pink brown.
Habit: gregarious. They also eat insects and some leaves. Usually share a common habitat with humans.
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The domestic sparrow originated in most parts of Europe and Asia. It is a sparrow, following the distribution of human beings.
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It was intentionally or unintentionally brought to America, sub-Saharan Africa, New Zealand, Australia and urban areas.
Is it true that the GDP of the Southern Song Dynasty accounted for 70% of the world?