A flag-raising ceremony is held at Potala Palace Square, Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. The annual Serfs Emancipation Day is held to commemorate the 1959 democratic reform in Tibet, which ended feudal serfdom and freed about one million Tibetan serfs. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform at a park in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform at a park in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

People hold Chinese flags as they participate in the celebrations marking the 59th anniversary of Tibet`s Serfs` Emancipation Day in Lhasa, capital city of China`s Tibet autonomous region, March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

People hold Chinese flags as they participate in the celebrations marking the 59th anniversary of Tibet`s Serfs` Emancipation Day in Lhasa, capital city of China`s Tibet autonomous region, March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

People hold Chinese flags as they participate in the celebrations marking the 59th anniversary of Tibet`s Serfs` Emancipation Day in Lhasa, capital city of China`s Tibet autonomous region, March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]

Dancers in traditional dress perform in Lhasa, capital city of China`s Tibet autonomous region, to celebrate the Serfs Emancipation Day on March 28, 2018. [Photo by Da Qiong/chinadaily.com.cn]