In ancient times, rainy days and hot summers plagued people, and people had to avoid the small pavilion and could not go out. There is such a legend that Luban built many small pavilions around his neighbors for everyone to use, but still can't let people go out freely during the stormy season. Luban’s wife then made a light bamboo pavilion with oil-paper in the style of his husband’s pavilion – this is the earliest umbrella. Luban’s wife said to Luban: "The house you built cannot move. My umbrella can take it around and provide protection in all seasons."