List of Former countries in Korean history in plain text you can copy and paste:
- Ara Gaya
- Baekje
- Baekje Government
- Balhae
- Bihwa Gaya
- Buyeo
- Byeonhan confederacy
- Daegaya
- Dongye
- Eastern Buyeo
- Gaya confederacy
- Geumgwan Gaya
- Goguryeo
- Gojoseon
- Goryeo
- Goryeong Gaya
- Gyeru
- Heungyo
- Jin
- Jinhan confederacy
- Jolbon
- Joseon
- Later Baekje
- Later Balhae
- Later Sabeol
- Later Silla
- Little Goguryeo
- Mahan confederacy
- Okjeo
- Samhan
- Silla
- Taebong
- Tamna
- Usan
- Wiman Joseon