: Nola, the giant python Luffy is currently stuck inside, was actually a hatchling during Noland's time and is one of the oldest creatures in the series.

: This arc introduced "Mantra," which was later revealed to be the first appearance of Observation Haki in the series. Where to Watch Legally

: Noland died branded a fraud, never knowing what happened to his best friend, while Kalgara died defending his land from the sky-dwellers, still hoping the bell would reach Noland.

One Piece Episode 189, titled " ", is widely considered one of the most emotionally resonant episodes in the Skypiea Arc. It serves as the heartbreaking conclusion to the flashback of Mont Blanc Noland and the Great Warrior Kalgara, revealing the tragic truth behind a 400-year-old misunderstanding. A Tale of Two Cultures

: Kalgara rushes to the beach, ringing the Great Golden Bell and screaming for his friend to return, promising to keep ringing it so Noland can always find his way back. The Tragedy of "Noland the Liar"

: The Shandia architecture and history are inspired by the ancient city of Tikal in Guatemala .

The tragedy is doubled by the fate that awaits Noland upon his return to the Blue Sea. He is executed as a liar by his king when he cannot find the Golden City again—unaware that it was launched into the sky by the Knock Up Stream.