When did bird's nest first appear?

There are many different stories about the origin of bird's nest, but the real historical record is Zheng He's voyage to the West. According to records, during Zheng He's voyage to the West, the weather in Wan Li, which was originally clear, suddenly changed. The fleet in the middle of the ocean suddenly encountered a big storm at sea and was forced to anchor on a desert island in the Malay archipelago. However, because the desert island is barren, solving the hunger problem has become a top priority.

So Zheng He and his men had to go out to find food. But because the desert island is too desolate, time passes and nothing is found. Just as everyone was about to leave empty-handed, Zheng He accidentally found a white object hidden on the cliff, so Zheng He ordered his men to take it down. When we got this hairy dirty thing, everyone was at a loss. Because it looks really ugly, basically no one wants to eat it, and they dare not eat it. But a few days later, all the food we found was this ugly thing. So they were forced to have no food for a long time, and everyone had no choice but to use it to satisfy their hunger.

After a few days, the weather gradually improved. In the past few days on a desert island, Zheng He and his party can only eat this ugly thing every day, thinking that it will cause any adverse reactions to their health, but on the contrary, everyone is full of energy. At this moment, Zheng He suddenly felt that although it looked ugly, it should be good for his health.

So, the fleet set sail again, and Zheng He decided to take this item back to China as a gift to Cheng Zu of the Ming Dynasty. Since then, bird's nest has become a rare tonic that China people can't give up, and Zheng He has also become the first person to eat bird's nest in China's historical records.