Creation of ninjago is very confusing.

how did the first spinjitzu master make ninjago? I know the lore says he used the golden weapons of spinjitzu, but in season 10, Kai says the weapons forged at the temple of light, and in season 2, garmadon calls the golden peaks the birthplace of The golden weapons. But during the island and seabound, we learn that before the first spinjitzu master arrived in what is now ninjago, there was only the endless sea, and probably the island of the keepers, as well as wojira. And once the FSM...