one piece - Is the Ship Spirit (klabautermann) based on any real legend? - Anime & Manga Stack Exchange

In One Piece Chapter 254, Usopp saw someone that fix Going Merry, later in chapter 351, Franky told him that it actually a manifestation of a ship's soul. Is this based on any real legend?

Review - One Piece - Chapter Review and Discussion - Latest Chapter 845

The Merry's and the Sunny's soul. : r/OnePiece

How many time skip is there in One Piece? - Quora

The Ancient Weapons And Their Secrets, Part 2 (Mega Theory) : r/OnePiece

Henry Avery/History, One Piece Role-Play Wiki

One Piece - The Romance of Fantasy - The Grand Monet Theory

How long is the One Piece Wano arc? - Quora

One Piece - The Romance of Fantasy - The Grand Monet Theory

Review - One Piece - Chapter Review and Discussion - Latest Chapter 845

One Piece - The Romance of Fantasy - The Grand Monet Theory