The Finnish airline Aero O/Y (now <a href="https://en.wikipedia.org/wiki/Finnair" id="mwARI" rel="mw:WikiLink" title="Finnair">Finnair</a>) is founded.<sup about="#mwt32" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-4"}}' id="cite_ref-4" rel="dc:references" typeof="mw:Extension/ref"><a href="./November_1#cite_note-4" id="mwARM" style="counter-reset: mw-Ref 4;"><span class="mw-reflink-text" id="mwARQ">[4]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-4"><cite about="#mwt29" class="citation web cs1" id="mwCCY"><a class="external text" href="https://company.finnair.com/en/about/history" id="mwCCc" rel="mw:ExtLink nofollow">"The history of Finnair"</a>. <i id="mwCCg">company.finnair.com</i><span class="reference-accessdate" id="mwCCk">. Retrieved <span class="nowrap" id="mwCCo">2023-11-01</span></span>.</cite><span about="#mwt29" class="Z3988" id="mwCCs" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=company.finnair.com&amp;rft.atitle=The+history+of+Finnair&amp;rft_id=https%3A%2F%2Fcompany.finnair.com%2Fen%2Fabout%2Fhistory&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ANovember+1"></span></span>