fɹʌmðə tˈɛnθ twˈɛlfθ sˈɛntʃɚɹiz ɐn ˈɜːli pˌɑːmɚɹˈeɪniən fˌɔːɹɾɪfɪkˈeɪʃən, pɹˈɑːbəbli wɪð ɐ mˈɑːɹkɪt, dɪvˈɛləpt æt ðə loʊkˈeɪʃən ʌv pɹˈɛzəntdˈeɪ tʃˈɑːdʒnə.
From the 10th-12th centuries an early Pomeranian fortification, probably with a market, developed at the location of present-day Chojna.