| 1893 | October 6 - Milton Ager is born in Chicago, IL |
| 1900 | Ager's sister buys a piano on which Ager begins his self-education in music |
| 1907 | Attends the McKinley High School in New York City. |
| 1910 | Begins his career as a movie house intermission pianist for silent movie theatres |
| 1913 | Hired as a song plugger for music publishing company Waterson, Berlin and Snyder |
| 1915 | Joins the US Army's Morale Division in Fort Greenleaf, George |
| 1920 | Art Hickman reaches the top ten with his recording of YOUNG MAN'S FANCY |
| 1921 | I'M NOBODY'S BABY reaches #3 on the Billboard charts with a recording by Marion Harris |
| 1921 | First songwriting success with the publishing of NOBODY'S BABY |
| 1922 | Forms his own publishing house with collaborator Jack Yellen. The new firm is called Ager, Yellen and Bornstein |
| 1923 | LOUISVILLE LOU is a top ten hit on the pop charts with a recording by Arthur Gibbs |
| 1923 | Ben Bernie's recording of LOVE TALES reaches #7 on the Billboard pop charts |
| 1924 | Dolly Kay reaches #3 on the pop charts with her recording of HARD HEARTED HANNAH |
| 1924 | Al Jolson's recording of I WONDER WHAT'S BECOME OF SALLY reaches #1 on the Billboard pop charts |
| 1924 | Sam Lanin's recording of MAMA GOES WHERE PAPA GOES is a #13 hit on the Billboard pop charts |
| 1927 | Johnny Marvin's recording of AIN'T THAT A GRAND AND GLORIOUS FEELING reach #10 on the Billboard charts |
| 1927 | Ben Bernie has a #1 hit recording of AIN'T SHE SWEET |
| 1927 | Frank Crumit has a top ten hit recording of CRAZY WORDS, CRAZY TUNE |
| 1927 | FORGIVE ME is a #1 hit on the Billboard charts with a recording by Gene Austin |
| 1928 | Paul Ash's recording of MY PET reaches the top twenty on the pop charts |
| 1928 | February 9 - Rain or Shine Opens on Broadway at the George M. Cohan theatre |
| 1929 | Ted Lewis' recording of GLAD RAG DOLL reaches the top ten on the Billboard charts |
| 1930 | Benny Meroff and Ben Selvin have separate #1 hit recordings of HAPPY DAYS ARE HERE AGAIN |
| 1930 | I LIKE TO DO THINGS FOR YOU reaches the top twenty on the pop charts with a recording by Paul Whiteman and His Orchestra |
| 1930 | Moves to Hollywood under a studio contract |
| 1932 | AUF WIEDERSEHN, MY DEAR reaches #3 on the Billboard charts with a recording by Jack Benny |
| 1932 | The Ager-Yellen composition HAPPY DAYS ARE HERE AGAIN is played at the inauguaration of President Franklin D. Roosevelt. The song has remained the theme song for the Democratic Party |
| 1936 | Benny Goodman has a #2 hit recording of YOU CAN'T PULL THE WOOL OVER MY EYES |
| 1937 | Mildred Bailey's recording of TRUST IN ME reaches #4 on the Billboard pop charts |
| 1940 | Judy Garland's cover recording of the 1921 hit song I'M NOBODY'S BABY reaches #3 on the pop charts |
| 1949 | Mr. Goon Bones and Mr. Ford reach the top fifteen on the pop charts with a cover recording of the 1927 hit AIN'T SHE SWEET |
| 1952 | Eddie Fisher has a top ten hit with a cover recording of FORGIVE ME |
| 1952 | Eddie Fisher's cover recording of the 1937 hit song TRUST IN ME reaches #25 on the pop charts |
| 1979 | May 6 - Milton Ager dies in Los Angeles, CA |