- 1942: Born in Boston, Massachusetts
- 1957: Graduates from Malden High School
- 1964: Receives an MBA from Harvard Business School
- 1966: Joins Salomon Brothers, an investment bank
- 1973: Founds Innovative Marketing Systems (later renamed Bloomberg L.P.)
- 1975: First Bloomberg Terminal is sold
- 1981: Bloomberg L.P. goes public
- 1982: Bloomberg News is founded
- 1987: Bloomberg Radio is founded
- 1990: Bloomberg Television is founded
- 2001: Bloomberg becomes mayor of New York City
- 2005: Is re-elected as mayor of New York City
- 2010: Leaves office as mayor of New York City
- 2020: Announces presidential campaign
- 2020: Drops out of presidential campaign
- 2022: Endorses Joe Biden for president
- 2024: Announces second presidential campaign