Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)

Dunhuang Research Academy releases a group of photos of grotto paintings from the Tang Dynasty (618-907) that depict female figures as International Women’s Day is marked on March 8 in Dunhuang, northwest China's Gansu province. (Photo provided by Dunhuang Academy China)