I'd like to contribute to the list. Feel free to edit these into your original post :))

Let's work from bottom to the top!

From your 'No idea' list:
  • My Only Love Song - Goguryeo, King Pyeongwon
From your 'Added from 2017' list:
  • Ruler: Master of the Mask - fictional Joseon
From your 'List of dramas / movies I wasn't able to figured out king or it's fictional' list:
  • Daemang / The Great Ambition (2002) - fictional Joseon
  • Royal Concubine: Concubine of King - fictional Joseon
  • The Servant - Joseon, Yeongjo/Jeongjo

To add (from latest era to oldest):

@WednesHwang ... A fountain of information, as usual  ;) .... But I think you may have a typo:
http://mydramalist.com/442-east-of-eden 
East of Eden .... Starts 1961 to about 1993 ... just a few years after the fifth republic.
Ooh, thank you @rainruma! :D ♡ I haven't watched it so I didn't know :'(
I used info from various sites in Korea. Thank you again~~
Rooftop Prince ? Unsure of which era (I think it's fictional Joseon but I'm not entirely sure since I lack in historical knowledge) though.
Queen for Seven Days under King Jungjong's regime?
Queen for Seven Days happens under Yeonsangun, year 1504

Hello,

I'm sorry that I haven't updated it in long time, but now I did ^^ Also added some more titles from 2017.

Thank you a lot Wednes for all help! <3


Thank you very much for this list, it's extremely useful for a nerd like me who likes to watch dramas  in historical order!!

Mr. Sunshine - circa 1905

Hymn of Death - circa 1920

Chicago Typewriter - 1930s

If you would like any help with updating, checking dates, linking, anything for this list I would love to help. This is incredible work and such a huge undertaking!

Hello Sunbae Scout ,

Thank you for help! If you want to help - surly I will apprecite it greatly, any help is welcome \o/

Also added upcoming movies and dramas:

  • Mongyudowondo
  • The Cyclist King
  • Ugeumchi
  • The Crowned Clown
  • Malmoi
  • Hatch
  • Different Dreams
  • Hong Chun Gi
  • Danjong, the Young King
  • Astronomy
  • Our Country's Language
  • Hero
  • The Clowns

kingdom ?

Joseon dynasty but what year (roughly) ?

 Thaïs Şoitu:

kingdom ?

Joseon dynasty but what year (roughly) ?

Sorry, no idea... only price who has similar given name Yi Haeng / Lee Chang  이행  is https://en.wikipedia.org/wiki/Crown_Prince_Hyojang but he died at the age 9.... XD

Mr. Queen and Under the queens umbrella I think they both belong somewhere in the Joseon era.

https://mydramalist.com/58365-queen-cheorin

https://mydramalist.com/705857-umbrella