/kloc-after the 0/7th century, the wind of smoking spread all over the world. Tobacco was introduced to China from Luzon Island to Xiamen in the Wanli period of the Ming Dynasty (1573- 1620), so it was called "Luzon Tobacco" at that time. The earliest planting was in Zhangzhou. However, some people think that it was introduced into Taiwan Province Province first, and then into Zhangzhou and Quanzhou. The exact time and year of introduction can no longer be verified. The earliest statement was in the third year of Wanli (1578), but no evidence was presented. The latest statement was put forward by Flora( 1956) in Guangzhou, saying that "after 1700" is not valid. Because it was already the Kangxi period of the Qing Dynasty.

There is no record of tobacco in Li Shizhen's Compendium of Materia Medica (1590), but in Zhao Xuemin's Compendium of Materia Medica (1755), tobacco is classified as the Ministry of Fire, and Zhang Jingyue is quoted as saying that "tobacco is pungent and slightly hot ... it is almost self-evident that it is from Fujian and Guangxi. Berichnett, a German, said in his book Botanical Literature of China (1870) that there was no record of tobacco in ancient books in China, and all porcelain painted with tobacco was 1700 years ago. From the above records, it seems that tobacco will be introduced into China no later than 1620.

During the 25 years from Wanli to the demise of Ming Dynasty, smoking was very popular. Otherwise, Chongzhen, the last emperor of the Ming Dynasty, wouldn't strictly prohibit tobacco planting and smoking. Tobacco is millet, and the part used to make tobacco is tobacco leaves. /kloc-products before the 0/7th century are mainly cigars, pipe cigarettes, snuff and chewing cigarettes. Cigarettes were only produced on 1843. Fujian Pisi tobacco was first produced in China, with a history of 300 years. Cigarettes were not imported by foreigners until 1890, and were produced in Shanghai around 1905.

Tobacco belongs to Solanaceae, an annual or limited perennial herb with slightly lignified base. Inflorescence terminal, conical, flowery; Capsule ovoid or oblong, approximately equal to persistent calyx. Flowers and fruits in summer and autumn.

Annual or limited perennial herbs, all glandular hairy; The roots are thick. The stem is 0.7-2 meters high and the base is slightly lignified. The leaves are oblong-lanceolate, lanceolate, oblong or ovoid, tapering at the top and tapering at the base into spikes, with a length of 10-30(-70) cm and a width of 8- 15(-30) cm, and the stalks are inconspicuous or winglike. Inflorescence terminal, conical, flowery; Pedicel 5-20 mm long. Calyx tubular or tubular bell-shaped, 20-25 mm long, lobes triangular-lanceolate, different in length; The corolla is funnel-shaped, reddish, the tube is light in color, slightly arched, 3.5-5 cm long, the brim width is 1- 1.5 cm, and the lobes are sharp; Among the stamens, 1 is obviously shorter than the other four, does not extend out of the corolla throat, and the filaments are hairy at the base. Capsule ovoid or oblong, approximately equal to persistent calyx. Seeds round or broadly oblong, about 0.5 mm in diameter, brown. Flowers and fruits in summer and autumn.

Tobacco harm is one of the serious public health problems in the world today. A great deal of scientific evidence shows that smoking and second-hand smoke exposure (passive smoking) seriously endanger human health. According to the statistics of the World Health Organization (WHO), the number of people who die from smoking every year in the world is as high as 6 million, that is, 1 person dies from smoking-related diseases every 6 seconds on average; Half of smokers will die prematurely because of smoking; The number of deaths of non-smokers caused by secondhand smoke exposure is about 600 thousand every year.

References:

Baidu Encyclopedia-Tobacco (Plants)