Subway keeping history on track

Carriages on the Xi'an Metro remind passengers of city's glorious heritage

Six subway carriages adorned with artwork inspired by poetry from the Tang Dynasty (618-907) began rolling in and out of stations along a line in Xi'an, capital of Shaanxi province, on Monday, to celebrate the city's history and culture.

This year marks the 1,400th anniversary of the city, known as Chang'an when it was designated as the capital of the Tang Dynasty in 618.