Yunnan is a province of the People's Republic of China, located in the far southwest of the country. It spans approximately and has a population of 45.7 million (as of 2009). The capital of the province is Kunming, formerly also known as Yunnan. The province borders the Chinese provinces Guangxi, Guizhou, Sichuan, and the Tibet Autonomous Region, and the countries Vietnam, Laos, and Burma. 

Yunnan is situated in a mountainous area, with high elevations in the northwest and low elevations in the southeast. Most of the population lives in the eastern part of the province. In the west, the altitude can vary from the mountain peaks to river valleys as much as . Yunnan is rich in natural resources and has the largest diversity of plant life in China. Of the approximately 30,000 species of higher plants in China, Yunnan has perhaps 17,000 or more. Yunnan's reserves of aluminium, lead, zinc and tin are the largest in China, and there are also major reserves of copper and nickel. 

The Han Empire first recorded diplomatic relations with the province at the end of the 2nd century BC. It became the seat of a Sino-Tibetan-speaking kingdom of Nanzhao in the 8th century AD. Nanzhao was multi-ethnic, but the elite most-likely spoke a northern dialect of Yi. The Mongols conquered the region in the 13th century, with local control exercised by warlords until the 1930s. From the Yuan dynasty onward, the area was part of a central-government sponsored population movement towards the Southwestern frontier, with 2 major waves of migrants arriving from Han-majority areas in northern and southeast China. As with other parts of China's southwest, Japanese occupation in the north during World War II forced another migration of majority Han people into the region. These two waves of migration contributed to Yunnan being one of the most ethnically diverse provinces of China, with ethnic minorities accounting for about 34 percent of its total population. Major ethnic groups include Yi, Bai, Hani, Zhuang, Dai and Miao.
About how many species of higher plants does Yunnan have?
How many total are there in China?
What is Yunnan?
In what country?
What is its capital?
What was Kunming known as before?
How many people are there?
As of which year?
Which empire first recorded relations with Yunnan?
When was that?
What was Nanzhao?
What kind of area is Yunnan located in
Where do most of the people live?
Does it have a lot of natural resources?
What are two of its reserves?
Which are the largest reserves in China?
What other major reserves does it have?
When did the Mongols conquer it?
With local control by warlords, until when?
How many waves of migration were there?
17,000 or more
 Of the approximately 30,000 species of higher plants in China, Yunnan has perhaps 17,000 or more.
approximately 30,000
Of the approximately 30,000 species of higher plants in China, Yunnan has perhaps 17,000 or more. 
a province
Yunnan is a province of the People's Republic of China, located in the far southwest of the country. 
People's Republic of China
Yunnan is a province of the People's Republic of China, located in the far southwest of the country
Kunming
The capital of the province is Kunming, formerly also known as Yunnan
Yunnan
 formerly also known as Yunnan.
45.7 million
 It spans approximately and has a population of 45.7 million
2009
a population of 45.7 million (as of 2009)
The Han Empire
The Han Empire first recorded diplomatic relations with the province at the end of the 2nd century BC
end of 2nd century BC
The Han Empire first recorded diplomatic relations with the province at the end of the 2nd century BC.
a kingdom
It became the seat of a Sino-Tibetan-speaking kingdom of Nanzhao in the 8th century AD.
a mountainous area
Yunnan is situated in a mountainous area, with high elevations in the northwest and low elevations in the southeast
the eastern part
Most of the population lives in the eastern part of the province. 
Yes
Yunnan is rich in natural resources
aluminium and lead
Yunnan's reserves of aluminium, lead, zinc and tin are the largest in China,
aluminium, lead, zinc and tin
Yunnan's reserves of aluminium, lead, zinc and tin are the largest in China
copper and nickel
 and there are also major reserves of copper and nickel. 
the 13th century
The Mongols conquered the region in the 13th century
1930s
with local control exercised by warlords until the 1930s
Two
ith 2 major waves of migrants arriving from Han-majority areas in northern and southeast China.