Orb on The Movements of Earth. It's historic fiction and revolves around a few historic themes, though not everything is really based on historic events, but it's genuinely a masterpiece of an anime.

GOSICK its set during 1900s europe and it does the setting SUPER well

Golden Kamuy: Search for lost gold post Russian-Japanese War.

I don't know if it counts. Apothecary diaries is so good

kingdom 100%. read the manga if you're willing to instead of watching the anime. it's about the warring states period of china. vinland saga is also great, it's about vikings. a lot of characters in both are based on real historical figures

Dororo

K-ON

Ie naki ko

Drifters

Heike Monogatari, Showa Genroku Rakugo Shinjuu, Samurai Champloo

I would recommend "Historie" by Hitoshi Iwaaki. It is a criminally underrated historical manga about the early lives of Alexander the Great and his right hand Eumenes. This series is very similar to post-prologue Vinland Saga in terms of slow-paced, but nonetheless very entertaining exploration of the era that the story takes place in, including great art, impressive attention to detail (you can tell that the author has done a lot of research on Ancient Greece and Macedonia, just like Yukimura did with the vikings) and thought-provoking themes.

The only big downside that this series is not finished and new chapters release even less frequently than Berserk :(

Dororo is absolutely fkin incredible and it's animated by Mappa as well. It's OP/ED1 are amazing, and the storyline is perhaps one of the best I've ever seen. Give it a watch, it's only 24 episodes.

Anything but kingdom, that abomination is an insult to both history and anime

Arslan Senki isn't historical though. It is heavily inspired by Sasanian-era Iran, but the world is a fictional one.

Idk dororo historical or not but i enjoyed it so much 10/10

maybe you can watch golden kamuy, its a masterpiece

Watch gintama

I recommend Intrigue in the Bakumatsu: Irohanihoheto

Rainbow: Nisha Rokubō no Shichinin and Emma: A Victorian Romance

And if you're ok with some supernatural aspect, I also recommend Baccano!

Vinland Saga

The Rose of Versailles

Dororo is pretty good

MARS RED

Kingdom

Golden kamuy hasn’t been mentioned yet and is phenomenal

Girls und Panzer

no, srsly

Sword of the stranger. Not generally a genre im into though.

In this Corner of the World

Gintama, not really historical in a sense, but full of historical references.

https://preview.redd.it/8zhq92ljcrbe1.jpeg?width=800&format=pjpg&auto=webp&s=895eb7257c846cc4b4577773bba7f5f514e98d3c

This

https://preview.redd.it/khwz4idpqqbe1.jpeg?width=219&format=pjpg&auto=webp&s=3e7d43c00e4605e7d09535e4988523e1cfa3b778

This

Kingdom

https://preview.redd.it/ihaxiw2xwtbe1.jpeg?width=301&format=pjpg&auto=webp&s=3b5013df55a46237c8b3407303a43e3d28862983

Gintama is based on Edo era of Japan with the Shinsengumi and the Shogun.....so Gintama🛐🛐🛐

https://preview.redd.it/mol9b7shgtbe1.jpeg?width=728&format=pjpg&auto=webp&s=a440efdcda9249475bf7f8f05eab07a0fc0fb81e

{The wind rises} - Movie about Jiro Horikoshi, a japanese airplane designer/engineer during WW2 who designed their (in)famous "zero" airplane.

{Grave of the fireflies} - Another WW2 movie, haven't seen it myself but it's supposed to be really good.

{Princess Mononoke} - More history/fantasy-esque movie set in historical Japan with forest spirits and nature deities etc.

{Samurai Champloo} - Another show set in a historical japanese setting.

Dororo (about samurai and monsters, but may be boring for some People)

Drifters (isekai with lots of historical figures and war stuff)

Baccano could work. It's set in the 1930s (mostly, with some detours to other time periods). There's 1 supernatural element to the story, but otherwise it's mostly grounded.

Golden Kamuy

{91 Days} is about American bootleggers/gangsters during prohibition.