Sorry, but wikipedia’s reliability is suspect, especially with China employing many people on computers within the country to spread misinformation.
In January 1913 a bilateral treaty was signed between Tibet and Mongolia at Urga. In that treaty both countries declared themselves free and separate from China.
The Thirteenth Dalai Lama, having returned from India i.n January 1913, issued a formal declaration of the complete independence of Tibet, dated the eighth day of the first month of the Water-Ox year (March 1913). The document also clarified:
Now the Chinese intention of colonising Tibet under the patron-priest relationship has faded like a rainbow in the sky.
The Thirteenth Dalai Lama started international relations, introduced modern postal and telegraph services and, despite the turbulent period in which he ruled, introduced measures to modernise Tibet. On December 17, 1933 he passed away.
The following year a Chinese mission arrived in Lhasa to offer condolences, but in fact they tried to settle the Sino-Tibetan border issue. After the chief delegate left, another Chinese delegate remained to continue discussions. The Chinese delegation was permitted to remain in Lhasa on the same footing as the Nepalese and Indian representatives until he was expelled in 1949.
In September 1949, Communist China, without any provocation, invaded Eastern Tibet and captured Chamdo, the headquarters of the Governor of Eastern Tibet. On November 11, 1950, the Tibetan Government protested to the United Nations Organisation against the Chinese aggression. Although El Salvador raised the question, the Steering Committee of the General Assembly moved to postpone the issue.
On November 17, 1950, His Holiness the Fourteenth Dalai Lama assumed full spiritual and temporal powers as the Head of State because of the grave crisis facing the country, although he was barely sixteen years old. On May 23, 1951 a Tibetan delegation, which had gone to Peking to hold talks on the invasion, was forced to sign the so-called 17-point Agreement on Measures for the Peaceful Liberation of Tibet, with threats of more military action in Tibet and by forging the official seals of Tibet.
The Chinese then used this document to carry out their plans to turn Tibet into a colony of China disregarding the strong resistance by the Tibetan people. What is more, the Chinese violated every article of this unequal treaty which they had imposed on the Tibetans.
On September 9, 1951 thousands of Chinese troops marched into Lhasa. The forcible occupation of Tibet was marked by systematic destruction of monasteries, suppression of religion, denial of political freedom, widespread arrests and imprisonment and massacre of innocent men, women and children.
On March 10, 1959 the nation-wide Tibetan resistance culminated in the Tibetan National Uprising against the Chinese in Lhasa. The Chinese retaliated with a ruthlessness unknown to the Tibetans. Thousands of men, women and children were massacred in the streets and many more imprisoned and deported. Monks and nuns were a prime target. Monasteries and temples were shelled.
On March 17, 1959 the Dalai Lama left Lhasa and escaped from the pursuing Chinese to seek political asylum in India. He was followed by unprecedented exodus of Tibetans into exile. Never before in their history had so many Tibetans been forced to leave their homeland under such difficult circumstances. There are now more than one hundred thousand Tibetan refugees all over the world.
It has been almost 40 years since Chinese occupied Tibet and the destruction of a unique
Culture is still going on Tibet, yet the world has not come in aid of Tibet, only lip service.
http://www.friends-of-tibet.org.nz/tibet.html
The same source also mentions that prior to the Mongol conquest, Tibet was always an independent country. After the Mongol conquest, they were both ruled by the Mongols as colonies or protectorates as the case might be.
Your argument is akin to the Canadians claiming control over the USA because both countries were ruled by the same colonial power a while ago....LOL
I think that history on Wikipedia is fairly decent. It matches pretty well what I have read in other accounts from Tibetan sources. If you read the paragraph in post #47 carefully it does not indicate a Han Chinese domination of political affairs in the least. It actually says the Mongols placed Tibetans and Uighurs in authority over the Han Chinese. The Yuan empire was Mongolian not Chinese.