Who invented glue after all?

Glue is widely used in today's society, so do you know who invented glue? In the world historical documents, the earliest inventor of glue is a kind of swim bladder glue invented by Lu Ban, the founder of woodworking in China, which is mainly made of swim bladder soybean protein and used in various thumb tools. Coincidentally, the world's first patent for adhesives was born in Britain in 1750. Its main raw material is also fish, which fully shows that glue was extracted from life experience and practice.