Analysis of information sources in references of the Wikipedia article "Te" in Danish language version.
{{cite book}}: CS1-vedligeholdelse: Ekstra punktum (link)By the time of the Shang dynasty (1766–1050 BC), tea was being consumed in Yunnan Province for its medicinal properties
The Portuguese traders and the Portuguese Jesuit priests, who like Jesuits of every nation busied themselves with the affairs of caffeine, wrote frequently and favorably to compatriots in Europe about tea.