| Paleolithic Age |
Ruins discovered from the late Paleolithic Age in Jwa-dong, Jung-dong and Cheongsapo in Haeundae |
| Neolithic Age |
Scattered ruins (shell mounds) from the Neolithic Age in Dongsam-dong, Jeo-do and Yeongseon-dong along the coastlines |
| Bronze Age |
Scattered ruins from the Bronze Age in Banyeo-dong, Oncheon-dong, Nopo-dong within low hilly districts around streams |
| Iron Age |
Scattered shell mound ruins in Dongnae and burial mounds in Bokcheon-dong, Guseo-dong and Nopo-dong |
| Samhan Era, the Three Kingdom Period |
Scattered ruins (Ancient Tombs in Bokcheon-dong, Ancient Tombs in Yeonsan-dong) from the Three Kingdom Period |
| Year 685 |
Surrounding area incorporated into Geochilsanguk under the reorganization of the local system into the gu, gun and hyeon system during the Unified Silla Period |
| Year 757 |
Geochilsanguk reorganized into Dongnae-gun |
| Year 1018 |
Dongnae-gun downgraded to Dongnae-hyeon under the governance of Ulju |
| Year 1151 |
Jeong Seo exiled to his hometown of Dongnae |
| Year 1387 |
Dongnaeeupseong Fortress rebuilt |
| Year 1397 |
Busanjin established |
| Year 1407 |
Opening of Naeipo (modern Jinhae) and Busan-Po (Busan Port) for the first time. |
| Year 1574 |
Dongnae-hyeon upgraded to Dongnae Dohobu |
| Year 1607 |
Dumo-po Waegwan established |
| Year 1655 |
Dongnae Dokjin (Dongnae Military Camp) upgraded |
| Year 1678 |
Waegwan moves to Choryang |
| Year 1702 |
Geumjeongsanseong Fortress rebuilt |
| Year 1731 |
Dongnaeeupseong Fortress rebuilt |
| Year 1876 |
Opening of the Busan Port as the result of Japan-Korea Treaty of 1876 |
| Year 1877 |
Japanese settlements in Busan established |
| Year 1907 |
Dongnae Branch of National Debt Redemption Movement founded |
| Year 1910 |
Japanese encroachment upon Korean national sovereignty |
| Year 1914 |
Busan Administrative System Established |
| Year 1919 |
An Huije establishes Gimi Yukyeonghoe (Gimi Scholarship Society) |
| Year 1920 |
Bak Jaehyeok bombs the Busan Police Station |
| Year 1936 |
The 1st Administrative District Expansion.
(Seomyeon area in Dongnae-gun and Amnam-dong incorporated into Busan) |
| Year 1942 |
The 2nd Administrative District Expansion.
(Dongnae-eup and Saha-myeon incorporated into Busan)
Branches in Dongnae, Saha and Suyeong established |
| Year 1945 |
Established Gyeongsangnam-do headquarters for the preparation of Korean independence
U.S. Army Forces Stationed in Busan - XXⅣ Corps (40th Division), 300 troops |
| Year 1949 |
Busan Administrative System discontinued and changed into the City of Busan |
| Year 1950 |
Busan becomes the Provisional Capital during the Korean War |
| Year 1953 |
Outbreak of massive fire at Busan Station |
| Year 1955 |
Population of Busan reaches 1,000,000 |
| Year 1957 |
Implementation of the Gu (Administrative District Unit) System.
6 Gus (Jung-gu, Seo-gu, Dong-gu, Yeongdo-gu, Busanjin-gu, Dongnae-gu) |
| Year 1963 |
Busan reclassified as Jikalsi under the control of the central government
The 3rd Administrative District Expansion.
(Gupo-eup Dongnae-gun, Sasang-myeon, Buk-myeon, Gijang-myeon incorporated into Busan) |
| Year 1975 |
Nam-gu created as part of the reorganization of administrative districts |
| Year 1978 |
The 4th Administrative District Expansion.
(Dajeo, Myeongji, Garack incorporated into Busan)
Buk-gu created as part of the reorganization of administrative districts |
| Year 1979 |
Busan-Masan Democratic Uprising |
| Year 1980 |
Haeundae-gu created as part of the reorganization of administrative districts |
| Year 1988 |
Geumjeong-gu created as part of the reorganization of administrative districts
Execution of self-governing administrative system |
| Year 1989 |
Noksan, Gimhae, Garak, Chenga and Changwon incorporated into Busan
Gangseo-gu created as part of the reorganization of administrative districts |
| Year 1995 |
Busan reclassified into metropolitan city from Jikalsi
Reorganization of Administrative Districts (15 Gus, 1 Gun)
(Yeonje-gu, Suyeong-gu, Sasang-gu and Gijang-gun created. Gijang-gun incorporated into Busan) |
| Year 1998 |
Opening of City Hall in Yeonsan-dong (moved from Jungang-dong) |
