Bombing damages of the sovjet air raid of January 21st 1940 in Oulu. The Ainola kindergarten in the foreground was burned down and the library and museum building in the background was damaged.
Unknown author<span style="display: none;">Unknown author</span>
January 1940 or February 1940
<cite class="book" style="font-style:normal" id="Reference-Rautavaara-1940">Rautavaara, Toivo; Konkka, Juhani (1940)      <i> Kunniamme päivät</i>, <a href="https://en.wikipedia.org/wiki/en:Porvoo" class="extiw" title="w:en:Porvoo"><span title="city in the region of Uusimaa in Finland">Porvoo</span></a>:  Werner Söderström Osakeyhtiö, pp. 22.1  <small><a href="https://en.wikipedia.org/wiki/International_Standard_Book_Number" class="extiw" title="en:International Standard Book Number">ISBN</a>:  <a href="//commons.wikimedia.org/wiki/Special:BookSources/N/A" title="Special:BookSources/N/A">N/A</a>. </small></cite>