Popular Anime Waiting Time for an adaptation

Counting from the First Chapter or Volume Release to the First Episode: How Long Did Popular Stories Take to Get an Anime Adaptation?
Some stories might take a long time due to factors like popularity, the author’s permission, and finding a studio capable of handling the project.
Information:
!)Blue Box is confirmed to air in October 2024, though the exact date is not yet announced.
2)Sakamoto Days is confirmed to air in January 2025, with no specific date announced.
3)Attack on Titan, Black Clover, and A Silent Voice (Koe no Katachi) were adapted from manga that were initially published as one-shots.
4)Hyouka is based on the Koten-bu Series, which is synonymous with Hyouka.

[@rottenfanger]

Oh parasyte was an old manga? Wow mindblowing

[@deathlydashi]

One punch man is actually 6 years

[@IndependenceReno-ef8tp]

Top 45 anime that you should not let children watch:
1) Highschool DxD (2012)
2) Tsugumomo (2017)
3) Dragonar Academy (2014)
4) Goblin Slayer (2018)
5) Girls Bravo (2004)
6) Kanokon (2008)
7) To Love-Ru (2008)
8) Love Hina (2002)
9) Jobless Reincarnation (2021)
10) My Uncle from another World (2022)
11) Sekirei (2008)
12) B-Gata H-Kei (2010)
13) Demon Slayer (2019)
14) Vermeil in Gold (2022)
15) Highschool of the Dead (2010)
16) Mother of the Goddess's Dormitory (2021)
17) Neon Genesis Evangelion (1997)
18) High-Rise Invasion (2021)
19) Cross Ange (2014)
20) Kill La Kill (2014)
21) Made in Abyss (2017)
22) Chivalry of a Failed Knight (2015)
23) Cat Planet Cuties (2010)
24) Arifureta: From Commonplace to World's Strongest (2019)
25) Sword Art Online (2012)
26) Attack on Titan (2013)
27) Corpse Princess: Aka (2008)
28) Blue Gender (1999)
29) Welcome to N.H.K. (2006)
30) Rin: Daughters of Mnemosyne (2008)
31) Freezing (2011)
32) A Sister's All You Need (2017)
33) And You Thought There Is Never a Girl Online? (2016)
34) My First Girlfriend is a Gal (2017)
35) Monster Musume: Everyday Life with Monster Girls (2015)
36) The Testament of Sister New Devil (2015)
37) Hundred (2016)
38) Aesthetica of a Rogue Hero (2012)
39) The Sacred Blacksmith (2009)
40) Lord Marksman and Vanadis (2014)
41) How NOT to Summon a Demon Lord (2018)
42) Skeleton Knight in Another World (2022)
43) Harem in the Labyrinth of Another World (2022)
44) Beast Tamer (2022)
45) Berserk (1997)

[@karmamonster4781]

What about the other JoJo manga there popular to pretty sure steel ball run is coming soon

[@deathlydashi]

Stardust crusaders had an ova anime adaptation in the 90s

[@mangalpednekar7837]

What about Detective conan

[@patriciaabubakar778]

Masih ada empat