Interest Stacks

Miura originally designed Guts' prosthetic arm more out of Barbaric than anything, but it turns out it wasn't as far-fetched as he thought. Götz von Berlichingen earned fame and fortune in the 15th century with a prosthetic arm of his own. While it didn't have an Arm Cannon built into it like Guts' did, the fingers were very articulated, and an advanced series of springs and levers made the hand perfectly capable of holding a weapon in battle, among other things. Yet despite this shared trait between both people and their similar-sounding names, Miura has confirmed that he never even heard about Götz until well after he started publishing the manga.

The scene in episode 2 where Haruko mentions Misuzu thinking that dinosaurs came from chicken eggs. It has since become scientific consensus that birds aren't just the descendants of dinosaurs, but living dinosaurs themselves.

Wilk raised his only child, Asirpa, to be a huntress, which is unusual because Ainu culture strictly enforced gender roles. However, as the series' Ainu language supervisor, Nakagawa Hiroshi, states in the seventh chapter of Ainu Bunka de Yomitoku Golden Kamuy ("Reading and Understanding Ainu Culture: Golden Kamuy"), Mokottunasi Kitahara discovered not only that there was an Ainu story about a girl raised as a skilled huntress in her murdered older brothers' place but also that Kinsei Ezo Jinbutsushi ("Personages of Early Modern Ezo") by Takeshiro Matsuhara documented a real-life Ainu huntress named Ciyuhirika.

In the final segment of the series' first episode, when Namihei goes to the hospital for a cancer scare, it later turns out he doesn't have cancer and the doctor says will have "a long life line". Turns out he and the series as a whole would meet this fate as the series has continued to run more than fifty years after its debut.

In his 1940 book Calling Captain Future, there are 3 moons of Pluto, named Charon, Styx and Cerberus. In 1978, Pluto's first moon was discovered and later named Charon. Two more moons were discovered in 2005 and named Nix and Hydra. In 2011 another moon was discovered and named Kerberos and in 2012 a fifth moon was discovered and named Styx.

In the Anime Version Howewhere these 3 Moons has Little to no Explanation.

In the English dub of Episode 7, Ranmaru (a Dude Looks Like a Lady samurai) was turned into a female. Female samurai really DID exist, Tomoe Gozen being possibly the most famous example.

According to an interview with Naito Keisuko, the connection between Ruru (and how her character development involved turning against Criasu) and the theater play R.U.R. was merely coincidental, as they chose the name Ruru Amour/RUR-9500 just because it sounded impressive.

In the English dub, Futoshi says that Gongenzaka has "only a card in his left hand" instead of "only one card left in his hand". Despite him considering a mistake, however, Gongenzaka did have the card in his left hand, so it was still correct.

In the New York skyline set in 2065, the Twin Towers are completely absent. The movie was released in July 2001.

A Hot Springs Episode... set in Alaska. Yeah, it's probably just fanservice for its own sake, but Alaska is geologically active and really does have quite a few hot springs.

Despite the fact that this show plays loose and fancy-free with its portrayal of historic events, it does actually hit a couple of nails right on the nose.
The Christopher Columbus episode was right in assuming that Columbus didn't intentionally want to discover a new land, nor that he was the first to discover what we now consider the United States. He was actually aiming to go to India in order to gather spices, but ended up in the completely wrong area instead. The idea that he originally discovered modern gymnastics is just the show being the show, though.
There actually is dispute over who was the first to invent the airplane: in Brazil, that honor belongs to the aviation pioneer Alberto Santos-Dumont, who flew his own airplane in 1906.

The protagonist is 172cm tall, the average height of a woman in the world is 171cm. But the animators sometimes made her look as tall as LeBron.