Due to the political turmoil that preceded the Macedonian Struggle, Mihăileanu's uncle brought him to Romania, where he continued his education in the Saint Sava National College.
[1] The Macedonian Struggle, a series of intertwined cultural, political and military conflicts between the various ethnic and religious communities residing in Macedonia, was to preoccupy Mihăileanu until the end of his life.
Subsequently Mihăileanu, published a number of articles in Peninsula Balcanică in which he branded SMAC as a criminal organization extorting wealthy people (including Aromanians) for money and revealed details of its preparations for armed struggle in Macedonia.
An outcry of public opinion followed, tributes to Mihăileanu were published in the press and letters of support were sent to his place of birth describing him as a martyr of Romanianism.
In 1901, Mihăileanu's Aromanian–Romanian dictionary was published, written in such a way so as to enrich the Aromanian language with specially modified Romanian words.