History books of Nguyen Dynasty record that after ascending the throne in 1802, Emperor Gia Long established the medicine agency to serve the court. However, it was not until the reign of Emperor Minh Mang that the structure of Thai Y Vien (Imperial Medicine Institute) was gradually completed. From then on, the recruitment of personnel to Thai Y Vien was extremely tight and serious.

I was invited to take a ‘Green Hue’ sightseeing trip. Standing on Gia Vien bridge and look northwards on a sunny day, I saw River Huong was supported with different colors: yellow of the Golden Shower tree, scarlet of the Flamboyant, velvet of the crape-myrtle, blue of the sky and green of water. It made me think of a picture of happiness and well-being in the deep memory of more than thirty years: Sinh paintings.