When was the two-legged golden toad popular in history

1, yongle sweet white glaze golden toad water note, shaped like a golden toad, head tilted up, golden toad slightly open mouth for the outlet; a pair of big eyes, for the embryo modeling molding out, there are dark carving pattern painted eyeballs; the back of the central column for the water inlet; legs sturdy, steady squatting; beautiful shape, the shape of the vessel is vivid. The whole golden toad glaze color white pure, without the slightest color, "juice Ying thick as a pile of fat, clean as beautiful jade." The whole piece of artifacts have dark engraved decoration, vague, hazy, extremely rich in beauty. In the dark light into the water inlet, you can clearly see the upper part of the water inlet has a dark engraved "Yongle Nianzhi" four characters in seal script and a dynamic pattern

2, the golden toad, a symbol of attracting wealth and fortune, official fortune. The golden toad injects water, implying the toad palace to win the laurel, which is the greatest wish of the literati, and the highest reward for the hard work of studying in the cold window. In the Yongle period of the Ming Dynasty, it was used to honor students from poor families. Therefore two legs of the golden toad popular in the history of the Ming and Qing dynasties.