| 1128 | Bishop Otto of Bamberg arrives to christianize the inhabitants of Wolin |
| 1181 | First castles built at the mouth of the Świna River |
| 1184 | Castles destroyed by the Danes |
| 1230 | First mention of the ferry across the River Świna |
| 1261 | 'A castle on the Świna River' mentioned in a document issued by Prince Barnim I |
| 1630 | Troops of the Swedish King Gustav Adolf arrive at Uznam and Wolin (legend has it that the king took a rest in the presbytery in Karsibórz) |
| 1720 | The Treaty of Stockholm - Wolin and Uznam islands consigned to Prussia |
| 1738-1780 | Dredging works and construction of the port at the mouth of the Świna River |
| 1747 | Świnoujście becomes a seaport, Szczecin's outer harbour |
| 1765 | New settlement on the Świna River acquires civic rights |
| 1818-1823 | Construction of breakwaters at the outlet of the Świna |
| 1824 | Świnoujście becomes a seaside resort, soon to become the most popular European spa |
| 1848 | Construction of the Świnoujście Fortress is launched |
| 1859 | Construction of the then tallest lighthouse in the world is completed |
| 1876 | Świnoujście linked to Berlin by a railway |
| 1880 | Opening of the Piastowski Channel |
| 1907 | German Kaiser and Russian Tsar meet in Świnoujście |
| 1934-1939 | Świnoujście becomes the naval station of Hitler's Kriegsmarine |
| 12.III.1945 | Heavy bombings by allied air forces cause damages and kill thousands of residentsi |
| 4-5.V. 1945 | Russian troops enter the islands and take control of Świnoujście |
| 4-6.X.1945 | The town taken over by representative of the Polish Authorities |
| 1948-51 | Construction of the 'Odra' fishing base |
| 1958 | Resolution of the Council of Ministers in favour of the reconstruction of Świnoujście |
| 1959 | The health treatment company 'Uzdrowiska' is established |
| 24.XII.1992 | Last Soviet troops leave Świnoujście |