10 dated entries naming Turku, drawn from 10 separate years between 1229 CE and 2003 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.
Also written as Åbo in the source articles; Wikipedia redirects those to the same subject, so their entries are on this page.
1229January 23 – The episcopal seat is moved from Nousiainen to Koroinen (located near the current centre of Turku) by the permission of Pope Gregory IX. The date is starting to be considered as the founding of Turku.source
16th century
1554Mikael Agricola becomes the bishop of Turku.source
1599November 10 – The Åbo Bloodbath takes place in Åbo (Turku), in modern-day Finland, which was part of Sweden at the time.source
17th century
1636All cities north of Stockholm and Åbo (Turku) are prohibited from foreign trade.source
1640July 15 – The first university of Finland, the Royal Academy of Turku, is inaugurated in Turku.source
1676An Åbo Lantdag (assembly) meets in Turku, Finland.source
18th century
1743January 23 – With mediation by France, Sweden and Russia begin peace negotiations at Åbo (Turku) to end the Russo-Swedish War. By August 17, Sweden cedes all of its claims to southern Finland.source
19th century
1808June 12 – Finnish War: A landing of Swedish troops at Ala-Lemu, near Turku, fails.source
1812April 8 – The capital of Finland is moved from Turku to Helsinki, when Russia's Tsar Alexander I signs an edict moving the Government Council of the Grand Duchy of Finland.source
21st century
200310 May: The first confirmed SARS case is reported in Finland. A man who had been visiting Toronto is now being treated at Turku University Hospital.source