Where did the Lord of the Rings, elves, dwarves, goblins and orcs first appear? What time?

Specifically, Nordic mythology is extremely tragic, and God has great humanity. It has existed since ancient times and is not new. Nordic myth is a unique myth system in Scandinavia, and its formation time is later than other major myth systems in the world. The oral spread history of Nordic mythology can be traced back to the 2nd century1-AD, which was first popular in Norway, Denmark and Sweden, and spread to Iceland and other places with a group of immigrants going north around the 7th century. In the Middle Ages, Christianity prevailed throughout Europe. Due to the strong political blow, most of the works recording Nordic myths were regarded as heresies and burned. So far, the Icelandic epic Eda and the Germanic epic Song of Nibelungen have been well preserved. Nordic mythology is a polytheistic system, which can be roughly divided into four systems: giant, god, elf and dwarf. Among them, the giant created the world and gave birth to the gods, but at the same time it is also the greatest enemy of the gods, which can be understood as a personalized natural force. The gods are divided into two tribes, the asir tribe headed by Odin and the Vannier tribe headed by Neil, the sea god, among which there are twelve gods. Elves and gnomes belong to demigods. They serve God. Their specific origin is still very vague, and they belong to a special creation in the Germanic region. See Baidu Encyclopedia for details.