1922 Came to frequent the pages of literary magazines with her first appearance in the Catholic magazine Árvore Nova.

1925 Associates with the Modernist Movement, joining the group of carioca magazine Festa.

1927 Beginning of the first phase of Festa magazine (1927-29 and 1934-35).

1929 Candidate for Chair of Literature of the Normal School of Rio, with the thesis ‘O Espírito Vitorioso’. It is not accepted, owing to backward prejudices. "In 1929, Cecília Meireles presents the thesis ‘O espírito vitorioso’ for the Chair of Literature at the Federal District Normal School. The defense is brilliant, but unable to win over minds already predisposed to offer the position to someone admittedly of the catholic group".

1930 Begins her collaboration on Rio de Janeiro’s Diário de Notícias, in which she has a daily section on education.

Between 1930 and 1934, manages a daily page in the Diário de Notícias dedicated to subjects related to teaching. According to Valéria Lamego, the ‘Página de Educação’ was published from 12^th June 1930 until January 1933.

1932 On 19^th March, signs the ‘New Education Manifesto for the Government and the People’, published in the ‘Página de Educação’ alongside Fernando de Azevedo, Anísio Teixeira, Lourenço Filho, Hermes Lima and others ("Pioneers of the New School Manifesto").

1933 In November she is invited, by the newspaper A Nação, to return to the press. There is, however, a condition: that she doesn’t talk about politics.

1934 In 1934, creates a specialized Children’s Library in Botafogo. It is the first of its kind in Brazil, lasting four years.

Organizes our first children’s library, at the Pavilhão Mourisco in Botafogo. "In 1934, she is designated, by the Federal District City Hall’s Secretary for Education, to manage a Center for Children that is to be installed at the Pavilhão do Mourisco. There, she creates the city’s first children’s library, taking full advantage of the Pavilion’s architectural possibilities in order to offer the children multiple educational and recreational activities. In this magical environment, so essential to the minds of children, the Moorish style towers house, for refuge and discovery, collections of stamps and of prints, and a music library of records. The basement, decorated by Fernando Correia Dias, is a kind of enchanted city where the children can freely use their imagination. On special occasions, educational pamphlets are printed, with pictures, poems, short texts and photos, to be distributed amongst the Center’s little users. However, this children’s paradise was short lived. Again fuelling political intrigue, the place was closed down as a result of the allegation that the library contained books dangerous to children’s formation. The presence of Mark Twain’s The Adventures of Tom Sawyer was used in evidence. More evident, however, were the negative repercussions of the episode, as much in the United States of America as in Brazil."

Concludes her collaboration with the newspaper Diário de Notícias.

In 1934, after an invitation by the Secretariado de Propaganda of the Portuguese government, she visits Portugal and holds conferences in the universities of Lisbon and Coimbra, disseminating aspects of Brazilian literature.

Makes her first trip to Portugal. "In September of the same year, Cecília Meireles makes her first trip abroad. On the invitation of the Portuguese Government, she presents a series of conferences in the universities of Lisbon and Coimbra in Portugal. The texts of two of these, Notícia da Poesia Brasileira and Batuque, Samba e Macumba are published, the latter accompanied by drawings that the poet herself had made and that she had exhibited at the conference enclosure to better illustrate Brazilian folklore."

1935 Is named Professor of Portuguese and Brazilian Literature and of Literary Technique and Criticism at the University of the Federal District (UFRJ).

"In 1935, was nominated to lecture in Portuguese and Brazilian Literature and, later, Literary Technique and Criticism at the University of the Federal District, and performed this function from 1936 until 1938. Gave several free courses on Comparative Literature and Oriental Literature".

1936 "From 1936 to 1938, the University of the Federal District embraces its classes of Portuguese and Brazilian Literature, Literary Technique and Criticism. The newspaper A Manhã hosts the Folklore column, the Correio Paulistano the weekly chronicles, and A Nação publishes other regular writings. Starts to work in the Departamento de Imprensa e Propaganda of the Brazilian government, where she is in charge of the magazine Travel in Brazil."

1940 Travels to the United States, giving classes of Brazilian Culture and Literature at the University of Texas. As of then, trips happen at regular intervals: Mexico, Uruguay, Argentina, the Azores, France, Belgium, Holland, India, Porto Rico and Israel. On various occasions, disseminates Brazilian culture through conferences and local publications.

Travels to the United States, where she gives lectures in Brazilian Culture and Literature at the University of Texas. After this, travels through Mexico, still on a cultural exchange trip, holding conferences on literature, folklore and education.

1942 From 1942 to 1944, publishes important studies on children’s folklore in the newspaper A Manhã.

Between 1942 and 1944, collaborates on a weekly column on Brazilian folklore for the newspaper A Manhã.

1944 Visits Uruguay and Argentina.

1948 "Is the authority on the subject of folklore, since the installation of the National Commission of Folklore in 1948, in which she collaborated, and will become secretary of the First National Congress of Folklore in 1951."

1949 In January, gives the three conferences on children’s literature that go to form the book Problemas da Literatura Infantil, in the Summer Courses promoted by the Secretary for Education in the city of Belo Horizonte, Minas Gerais State.

1951 Secretary of the First National Congress of Folklore, Rio Grande do Sul, as a member of the National Commission of Folklore.

1953 Visits India, Gôa and Europe.

Receives the title of Doctor Honoris Causae of the University of Delhi in India.

From 1953 to 1959 participates "in the famous literary supplement of the newspaper Diário de Notícias, which, in the previous decade, had published the weekly chronicles of Sérgio Buarque de Hollanda and Mário de Andrade".

1954 Visits Europe and the Azores.

1957 Visits Porto Rico.

Teaches a course on Oriental Literature, specializing in drama, at the Fundação Dulcina.

1958 Visits Israel.

1964 Publishes Ou Isto ou Aquilo, a poetry book for children.