| October 1, 1899 | Lajos Bárdos was born in Budapest the third of five children. He learned to play violin and was an active participant in the scout movement. |
| 1917 | Soldier. |
| 1919 | Studied one year at the Mechanical University. |
| 1920 | Admitted to the Music Academy. In the first year he studied under Albert Siklós, later under Zoltán Kodály. |
| Summer of 1921 | Composed his first work for mixed choir (“Szello zúg távol”) at a Boy Scout camp in Bakonybél. In an interview he said: “it happened here for the first time that young men from the town sang folk songs.” |
| January 1925 | Travelled to Turkey, became acquainted with oriental music and collected Turkish folk songs. |
| Fall 1925 - Summer 1929 | Taught singing and conducted a choir at the Attila street Secondary School. |
| Fall 1925 - Summer 1942 | Conducted the Cecília Choir of the Városmajor Church. |
| 1926 | Married Irén Waliczky. Part-time teacher at the Music Academy. |
| 1928 -1966 | Professor at the Music Academy. |
| 1930 | Together with Gyula Kertész he started the Magyar Kórus Kiadóvállalat (Hungarian Choir Publishing Firm). |
| 1932 | Performed the mystery dramas “Eight Beatitudes” and “Saint of Roses” written together with Valéria Dienes. With the Palestrina Choir they performed Stravinsky’s Psalm Symphony with great success. |
| 1933 | Collected folk songs in the Hódmezovásárhely area. April: performed in Vienna with the Palestrina Choir. August: musical leader of the World Jamboree in Gödöllo. |
| 1934 | The first “Singing Youth” concert at the Music Academy. He conducted the final combined choirs. |
| 1935 | First performance of his Missa Prima. |
| 1936 | A festive concert at the Music Academy celebrating his tenth anniversary as a professor of the Academy. |
| 1938 | Wrote the school book Énekes Ábécé together with György Kerényi, Gyula Kertész and Benjamin Rajeczky. He was the president of the St. Cecília Society, an organisation for sacred music. |
| 1939 | Toured with the Cecília Choir in Western Europe. First performance of the oratorio “St. Margit from the House of Árpád” on Margaret Island. |
| 1940 | Toured with the Cecília Choir in Belgrad and Zimony. |
| 1941 | Combined the Cecília Choir and the Palestrina Choir to create the Budapest Choir. |
| 1942 | Singing Youth concert in Máramarossziget and Kolozsvár. Performed Stravinsky’s Psalm Symphony with the Budapest Choir as well. As an innovation he added explanations to the music. August: He was appointed to be the conductor of the Matthias Church, a position he held until 1962. |
| 1946 | Performed the “Alexius Suite” with the Choir of the Matthias Church on Hungarian Radio. (Based on the text by Sándor Sík.) |
| 1947 | Became the art director of the Bartók Federation and president of the National Federation of Hungarian Song Clubs. |
| 1948 | First performance of the canon “Boldogasszony” in Makó with four choirs. Received the Order of the Knights of Saint Gregory the Great from Pope Pius XII. |
| October 15, 1950 | The Hungarian Choir Publishing Firm was nationalized. |
| 1951 | The Music Science Faculty was started at the Music Academy, where he was the professor of music theory and prosody. |
| 1953 | Erkel Prize, Distinguished Worker of Higher Education. |
| 1954 | Meritorious Artist. |
| 1955 | Kossuth Prize. |
| 1961 | Conducted the united choir of 17 choirs at the Helikon Festival in Keszthely. His theoretical work Modal Harmonies appeared. |
| 1962 | Stopped conducting the Choir of the Matthias Church due to severe heart problems. |
| 1966 | Retired from the Music Academy. |
| 1969 | Concerts on his 70th birthday countrywide: Pécs, Szeged, Vác, Dunaújváros, Miskolc, Gyor, Nyíregyháza. He was awarded the Order of Labour. |
| 1970 | Distinguished Artist. |
| 1976 | His theoretical book Ferenc Liszt, the Composer of the Future appeared. |
| 1977 | Bartók Melodies and the Folk Music appears. |
| 1979 | On his 80th birthday concerts all over the country. Received the Flag Order of the Hungarian People’s Republic and became Knight Commander of the Order of Saint Gregory the Great. |
| 1980 | Audience Award of the Hungarian Radio for the choral work “The Supplication of Jeremiah” |
| 1984 | 85th birthday concerts countrywide. Bartók-Pásztory Prize, Via Giulia Prize from the Hungarian Institute of Rome, Flag Order of the Hungarian People’s Republic Decorated with Laurels. |
| 1985 | “For the Children” Prize. He became Doctor of Academy of music theory. |
| November 18, 1986 | Died. |