Why are some ancient cups called cups and some called lamps?

We often say "a glass of wine" and "a cup of tea", so we can guess that the cup is for drinking and the cup is for drinking tea. There is a big difference between cups, because cups appear before cups.

Time disappears in the gentle wind and light dance, and the brick of mottled history is sealed in the tile rock. Looking back, Wang Bo, a poet in the Western Han Dynasty, said that "there is everything to make tea, and the ends of the earth have been covered", which is the historical data that China first mentioned "tea set". With the passage of time and the evolution of history, in the Tang Dynasty, "tea set" can be seen everywhere in Tang poetry, such as a sentence by Wang Wei.

The earliest celadon cups appeared in the China period, and those in the Han Dynasty were oval with a shallow belly and a border beside them, which was the most representative. The cups of the Sui Dynasty are a bit like today's. Most of them are straight-mouthed, with a small blue glazed mouth at the bottom. The most famous cups in Tang Dynasty are glazed pottery cups and textured cups. At that time, there was a wave of swaying posture, which was to make a set of plates and cups, which was a bit like the current tea set.

Later, in the Song and Yuan Dynasties, cups began to develop into straight tubes, extremely small and shallow, round or square cups, and the bottom of the cups was trumpet-shaped. In the history of the development of cups, cups are more advanced than teacups. Generally, cups are used for drinking water, while teacups are more used for drinking tea. The cup is smaller, the cup is bigger, the cup is tall and round, the cup pattern is simple, and the cup is more complicated. Through the difference between cups, we can feel the profoundness of our traditional culture.